Gaya APA
Varney, Helen. (1980).
Nurse Midwifery (2).
USA:
Blackwell Scientific.
Gaya Chicago
Varney, Helen.
Nurse Midwifery.
2
USA:
Blackwell Scientific,
1980.
Buku.
Gaya MLA
Varney, Helen.
Nurse Midwifery.
2
USA:
Blackwell Scientific,
1980.
Buku.
Gaya Turabian
Varney, Helen.
Nurse Midwifery.
2
USA:
Blackwell Scientific,
1980.
Buku.