Gaya APA

Murkoff, H., Mazel, S. (2011). What To Expect The Second Year : from 12 to 24 months . New York: Workman Publishing.

Gaya MLA

Murkoff, Heidi., Mazel, Sharon. "What To Expect The Second Year : from 12 to 24 months". New York: Workman Publishing, 2011. Text.