Gaya APA

Tolman, M, N. (). Discoverring elementary science method, content, and problem-solving ì activies . Boston:: Boston: Allyn and Bacon; 1995.

Gaya MLA

Tolman, Marvin, N.. "Discoverring elementary science method, content, and problem-solving ì activies". Boston:: Boston: Allyn and Bacon; 1995, . Text.