Gaya APA
Curtis, G, B., Widianto, G. (1999).
Kehamilan : apa yang anda hadapi minggu per minggu (Your pregnancy week by week) .
Jakarta:
Arcan.
Gaya MLA
Curtis, Glade, B., Widianto, Gianto.
"Kehamilan : apa yang anda hadapi minggu per minggu (Your pregnancy week by week)".
Jakarta:
Arcan,
1999.
Text.