Cita APA (7a ed.)

FREY, J. H. (1983). Survey Research By Telephone / James H. Frey. Sage.

Cita Chicago Style (17a ed.)

FREY, JAMES H. Survey Research By Telephone / James H. Frey. Sage, 1983.

Cita MLA (8a ed.)

FREY, JAMES H. Survey Research By Telephone / James H. Frey. Sage, 1983.