Gaya APA

PETERSEN, D, G., HAYDEN, V, D. (1961). Teaching & learning in the elementary school . New Yorks: Appleton-Century-Crofts.

Gaya MLA

PETERSEN, Dorothy, G.., HAYDEN, Velma, D.. "Teaching & learning in the elementary school". New Yorks: Appleton-Century-Crofts, 1961. Buku.