Gaya APA

Patton, C, V., Sawick, D, S. (1986). Basic Methods of Policy Analysis & Planning . America: libray of congress cataloging-in publicatio data.

Gaya MLA

Patton, Carl, V.., Sawick, David, S.. "Basic Methods of Policy Analysis & Planning". America: libray of congress cataloging-in publicatio data, 1986. Text.