Gaya APA
Brown, V., R., B., &., L., K. (1993).
TEXTBOOK FOR MIDWIVES (twelfth edition).
United Kingdom UK:
ELBS & Churchil Livingstone.
Gaya MLA
Brown, V., Ruth, Bennet, &, Linda, K..
"TEXTBOOK FOR MIDWIVES".
twelfth edition
United Kingdom UK:
ELBS & Churchil Livingstone,
1993.
Buku Inti.