Gaya APA
Jonathan, W, W., Singer, D. (1991).
Textbook of Fetal and Perinatal Pathology Vol. 1 .
Boston:
Blackwell Scientific Publications.
Gaya MLA
Jonathan, Wiggles, Worth,., Singer, Don.
"Textbook of Fetal and Perinatal Pathology Vol. 1".
Boston:
Blackwell Scientific Publications,
1991.
print.