Casebook of non-directive counseling
MLA
Snyder, William Ulrich, Leonard Carmichael, and Carl R Rogers. Casebook of Non-directive Counseling. Boston (Mass.): Houghton Mifflin, 1947.
APA
Snyder, W. Ulrich, Carmichael, L., & Rogers, C. R. (1947). Casebook of non-directive counseling. Boston (Mass.): Houghton Mifflin.
Chicago
Snyder, William Ulrich, Casebook of Non-Directive Counseling. Edited by Leonard Carmichael and Carl R Rogers. Boston (Mass.): Houghton Mifflin, 1947.