APA Style
HOWARD, RICHARD. (1991).
A COMPLITE CHECKLIST OF BIRDS OF THE WORLD .
NEW YORK:
.
Chicago Style
HOWARD, RICHARD.
A COMPLITE CHECKLIST OF BIRDS OF THE WORLD.
NEW YORK:
,
1991.
Text.
MLA Style
HOWARD, RICHARD.
A COMPLITE CHECKLIST OF BIRDS OF THE WORLD.
NEW YORK:
,
1991.
Text.
Turabian Style
HOWARD, RICHARD.
A COMPLITE CHECKLIST OF BIRDS OF THE WORLD.
NEW YORK:
,
1991.
Print.