Kiffer, T. E., & Burns, M. A. (1972). Human Services Occupations in the Two-Year College: A Handbook.
Citazione stile Chigago Style (17a edizione)Kiffer, Theodore E., e Martha A. Burns. Human Services Occupations in the Two-Year College: A Handbook. 1972.
Citatione MLA (9a ed.)Kiffer, Theodore E., e Martha A. Burns. Human Services Occupations in the Two-Year College: A Handbook. 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.