Gaya APA
BRECKENRIDGE, M, E., MURPHY, M, N. (1969).
Growth and development of the youn (8th ed.).
Philadelpia:
W.B. Saunders.
Gaya MLA
BRECKENRIDGE, Marien, E.., MURPHY, Margaret, Nesbitt.
"Growth and development of the youn".
8th ed.
Philadelpia:
W.B. Saunders,
1969.
Buku.