Gaya APA

Harvard, J., Rose, F. (1994). Guide to professional and business correspondence (inggris-indonesia) (bilingual guide to business and professional correspondence) (cet 4). Jakarta: PT Pustaka Binaman Pressindo.

Gaya MLA

Harvard, Joseph., Rose, Felix. "Guide to professional and business correspondence (inggris-indonesia) (bilingual guide to business and professional correspondence)". cet 4 Jakarta: PT Pustaka Binaman Pressindo, 1994. BUKU.