Gaya APA

Tyson, J, C., Carrol, M, A. (1970). Conceptual tools for teaching in secondary schools . Boston: Houghton Mifflin Company.

Gaya MLA

Tyson, James, C.., Carrol, Mary, Ann. "Conceptual tools for teaching in secondary schools". Boston: Houghton Mifflin Company, 1970. Text.