Comparative research methods.
Edited by Donald P. Warwick [and] Samuel Osherson.

APA Citation

Warwick, D. P., Osherson, S. (1973). Comparative research methods. Englewood Cliffs, N.J.: Prentice-Hall.

MLA Citation

Warwick, Donald P, and Samuel Osherson. Comparative Research Methods. Englewood Cliffs, N.J.: Prentice-Hall, 1973.

Warning: These citations may not always be complete (especially for serials).