Hansen, J. C. e., & Cramer, S. H. j. e. (1971). Group guidance and counseling in the schools; selected readings. Appleton-Century-Crofts.
Citazione stile Chigago Style (17a edizione)Hansen, James C. ed, e Stanley H. joint ed Cramer. Group Guidance and Counseling in the Schools; Selected Readings. New York: Appleton-Century-Crofts, 1971.
Citatione MLA (9a ed.)Hansen, James C. ed, e Stanley H. joint ed Cramer. Group Guidance and Counseling in the Schools; Selected Readings. Appleton-Century-Crofts, 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.