Gaya APA

GREGG, J, R. et al (1968). APPLIED SECRETARIAL PRACTICE : SIXTH EDITION . NEW YORK: McGRAW-HILL INTERNATIONAL EDITIONS.

Gaya MLA

GREGG, JOHN, ROBERT. et al. "APPLIED SECRETARIAL PRACTICE : SIXTH EDITION". NEW YORK: McGRAW-HILL INTERNATIONAL EDITIONS, 1968. Prodi D3 Kesekretariatan.