Gaya APA
Widmann, F, K. (1981).
Technical Manual: of the American Association of Blood Banks (8th ed).
Washington, D.C.:
American Association of Blood Banks.
Gaya MLA
Widmann, Frances, K.
"Technical Manual: of the American Association of Blood Banks".
8th ed
Washington, D.C.:
American Association of Blood Banks,
1981.
print.