Gaya APA

, ., Obenchain, K, M. (2011). 50 Social Studies Strategies for K-8 Classrooms (3rd Edition) . Allyn & Bacon, 2011: Allyn & Bacon, 2011.

Gaya MLA

, ., Obenchain, Kathryn, M.. "50 Social Studies Strategies for K-8 Classrooms (3rd Edition)". Allyn & Bacon, 2011: Allyn & Bacon, 2011, 2011. .