Two clues are contained in this book; firstly, the clue of learning methods; secondly, clue of scientific methods. You may find that both of the two lines have been presented in Chinese version.

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Description de la librairie

ThriftBooks is a fully independent seller of used books, having sold more than 160 million used and new books since we started in 2003. Each quality used book is sorted, graded, shelved and shipped by hand by our team of dedicated employees in our seven warehouses across the US. We have the best selection of books, in the right condition and format, at everyday low prices. We also have a dedicated, US-based Customer Service team, ranked in the top three by Newsweek for Best Customer Service in 2018 and 2019, so you can shop with confidence. We support and invest in our employees, appreciate and value our customers, and truly believe in the power of the written word to educate, energize, and engage readers of all ages and interests.

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Informations commerciales relatives au vendeur

Thrift Books Global LLC
18300 Cascade Ave S, Seattle, WA, 98188, U.S.A.

Conditions de vente et de livraison

Conditions g�n�rales de vente

We guarantee each book that we send you. If you have any problems, please contact
our dedicated customer service department. They will do everything possible to
ensure you are happy with your order.

Droit de r�tractation

Conditions d'exp�dition

All domestic Standard and Expedited shipments are distributed from our warehouses by OSM, then handed off to the USPS for final delivery.

2-Day Shipping is delivered by FedEx, which does not deliver to PO boxes.

International shipments are tendered to the local postal service in the destination country for final delivery – we do not use courier services for international deliveries.

Frais d?exp�dition � l?int�rieur de ce pays�: Etats-Unis

Frais d?exp�dition � l?int�rieur de ce pays�: Etats-Unis
Quantit� command�e	4 � 8 jours ouvr�s	4 � 8 jours ouvr�s
Premier article	EUR 0.00	EUR 0.00

Les d�lais de livraison sont fix�s par les vendeurs et varient en fonction du transporteur et du lieu. Les commandes transitant par les douanes peuvent �tre retard�es et les acheteurs sont responsables de tous les droits ou frais associ�s. Les vendeurs peuvent vous contacter au sujet de frais suppl�mentaires afin de couvrir toute augmentation des co�ts d'exp�dition de vos articles.