Gaya APA

Welton, D, A., Mallan, J, T. (1981). Children and Their World : Strategis for Teaching Social Studies (Ed. 2). Boston: Houghton Mifflin Company.

Gaya MLA

Welton, David, A.., Mallan, John, T.. "Children and Their World : Strategis for Teaching Social Studies". Ed. 2 Boston: Houghton Mifflin Company, 1981. Text.