APA Style

Erlangga, ., dkk, H, D, Y, R. (1970). Catalog Of Books 1969 . : Litton Education Publishing.

MLA Style

Erlangga, ., dkk, Hj., Dra., Yusi, Rosdiana,m.pd,. "Catalog Of Books 1969". : Litton Education Publishing, 1970. Buku PGSD.