APA Style
Amphibians : The history of life on earth. (1987).
New York:
Facts on File Publications.
Chicago Style
Amphibians : The history of life on earth.
.
New York:
Facts on File Publications,
1987.
Buku.
MLA Style
Amphibians : The history of life on earth.
.
New York:
Facts on File Publications,
1987.
Buku.
Turabian Style
Amphibians : The history of life on earth.
New York:
Facts on File Publications,
1987.
Buku.