Gaya APA
Varneys, Helen. (1987).
Varney's Midwifery edisi 3 .
Jakarta:
Blackwell Scientific.
Gaya Chicago
Varneys, Helen.
Varney's Midwifery edisi 3.
Jakarta:
Blackwell Scientific,
1987.
.
Gaya MLA
Varneys, Helen.
Varney's Midwifery edisi 3.
Jakarta:
Blackwell Scientific,
1987.
.
Gaya Turabian
Varneys, Helen.
Varney's Midwifery edisi 3.
Jakarta:
Blackwell Scientific,
1987.
.