APA (7. basım) Alıntı

Elfenbein, J. (1977). Business letters and communications (1977 edition.). Alexander Hamilton Institute.

Chicago Style (17. basım) Atıf

Elfenbein, Julien. Business Letters and Communications. 1977 edition. New York: Alexander Hamilton Institute, 1977.

MLA (9th ed.) Atıf

Elfenbein, Julien. Business Letters and Communications. 1977 edition. Alexander Hamilton Institute, 1977.