Gaya APA
Romer, Alfred S.. (1959).
The vertebrate story .
London:
Cambridge University Press.
Gaya Chicago
Romer, Alfred S..
The vertebrate story.
London:
Cambridge University Press,
1959.
Text.
Gaya MLA
Romer, Alfred S..
The vertebrate story.
London:
Cambridge University Press,
1959.
Text.
Gaya Turabian
Romer, Alfred S..
The vertebrate story.
London:
Cambridge University Press,
1959.
Print.