Gaya APA
SOULSBY, E. (1975).
HELMINTHS, ARTHROPODS & PROTOZOA OF DOMESTICATED ANIMALS (SIXTH).
Baltimore:
The Williams and Wilkins Company.
Gaya MLA
SOULSBY, E.J.L..
"HELMINTHS, ARTHROPODS & PROTOZOA OF DOMESTICATED ANIMALS".
SIXTH
Baltimore:
The Williams and Wilkins Company,
1975.
Text.