APA Style
Wallace, Robert A.. (1991).
Biology The World of Life .
:
Harper Collins Publiehers.
Chicago Style
Wallace, Robert A..
Biology The World of Life.
:
Harper Collins Publiehers,
1991.
Text.
MLA Style
Wallace, Robert A..
Biology The World of Life.
:
Harper Collins Publiehers,
1991.
Text.
Turabian Style
Wallace, Robert A..
Biology The World of Life.
:
Harper Collins Publiehers,
1991.
Print.