APA Alıntı

William E Hopke. (1976). Encyclopaedia of careers and vocational guidance- Rev-Ed.- 2 vol. JC Ferguson publishing co.

Chicago Stili Alıntı

William E Hopke. Encyclopaedia of Careers and Vocational Guidance- Rev-Ed.- 2 Vol. Chicago: JC Ferguson publishing co, 1976.

MLA Alıntı

William E Hopke. Encyclopaedia of Careers and Vocational Guidance- Rev-Ed.- 2 Vol. JC Ferguson publishing co, 1976.