Gaya APA
Men and women of science. (1989).
New York:
World Book.
Gaya Chicago
Men and women of science.
.
New York:
World Book,
1989.
Text.
Gaya MLA
Men and women of science.
.
New York:
World Book,
1989.
Text.
Gaya Turabian
Men and women of science.
New York:
World Book,
1989.
Print.