Gaya APA
Cavanaugh, J, C., Blanchard-Fields, F. (2006).
Adult Development and Aging 5'th Ed. (5).
USA:
Thomson Wadsworth.
Gaya MLA
Cavanaugh, John, C.., Blanchard-Fields, Fredda.
"Adult Development and Aging 5'th Ed.".
5
USA:
Thomson Wadsworth,
2006.
Text.