Cita APA (7a ed.)
(2007). Today's parent, pregnancy & birth. Today's Parent Group.
Cita Chicago Style (17a ed.)
Today's Parent, Pregnancy & Birth. Toronto: Today's Parent Group, 2007.
Cita MLA (9a ed.)
Today's Parent, Pregnancy & Birth. Today's Parent Group, 2007.
Precaución: Estas citas no son 100% exactas.