http://www.issia.cnr.it/ http://www.ba.iac.cnr.it/wp/ https://ntnucamp.sce.ntnu.edu.tw/ http://leda.elfak.ni.ac.rs/

Gaya APA

Billy Graham Christian Worker's Handbook, The: A Comprehensive Counseling Guide. (1981). : World Wide Publications.

Gaya MLA

Billy Graham Christian Worker's Handbook, The: A Comprehensive Counseling Guide. 1. : World Wide Publications, 1981. Non Fiction.