Gaya APA

Hoyer, W, J., Roodin, P, A. (2003). Adult Development and Aging (Ed. 5.--). America: McGraw-Hill.

Gaya MLA

Hoyer, William, J.., Roodin, Paul, A.. "Adult Development and Aging". Ed. 5.-- America: McGraw-Hill, 2003. Buku.