Gaya APA
Heardman, . (1996).
Senam Hamil (Relaxation and Exercise for Childbirth) .
Jakarta:
Penerbit Buku Kedokteran EGC.
Gaya MLA
Heardman, .
"Senam Hamil (Relaxation and Exercise for Childbirth)".
Jakarta:
Penerbit Buku Kedokteran EGC,
1996.
Text.