Gaya APA
Postlethwait, John H., Hopson, Janet L.. (1989).
The nature of life .
New York:
Random House.
Gaya Chicago
Postlethwait, John H., Hopson, Janet L..
The nature of life.
New York:
Random House,
1989.
Ensiklopedia.
Gaya MLA
Postlethwait, John H., Hopson, Janet L..
The nature of life.
New York:
Random House,
1989.
Ensiklopedia.
Gaya Turabian
Postlethwait, John H., Hopson, Janet L..
The nature of life.
New York:
Random House,
1989.
Ensiklopedia.