APA Style
Sommer, Robert, Sommer, Barbara B. (1980).
A Pratical Guide to Behavioral Research .
America:
Oxford University Press.
Chicago Style
Sommer, Robert, Sommer, Barbara B.
A Pratical Guide to Behavioral Research.
America:
Oxford University Press,
1980.
Text.
MLA Style
Sommer, Robert, Sommer, Barbara B.
A Pratical Guide to Behavioral Research.
America:
Oxford University Press,
1980.
Text.
Turabian Style
Sommer, Robert, Sommer, Barbara B.
A Pratical Guide to Behavioral Research.
America:
Oxford University Press,
1980.
Print.