Gaya APA
Goldstein, M., Goldstein, I, F. (1980).
How we know: an exploration of the scientific process (3rd. Print.).
New York:
Plenum.
Gaya MLA
Goldstein, Martin., Goldstein, Inge, F..
"How we know: an exploration of the scientific process".
3rd. Print.
New York:
Plenum,
1980.
Text.