Gaya APA
Forsyth, P. (1997).
Marketing Professional Services: Memasarkan Jasa Profesional .
Jakarta:
PT Gramedia Pustaka Utama.
Gaya MLA
Forsyth, Patrick.
"Marketing Professional Services: Memasarkan Jasa Profesional".
Jakarta:
PT Gramedia Pustaka Utama,
1997.
Texts.