Gaya APA

Cope, Z., Hartono, A. (1980). The Early diagnosis of the acute abdomen : akut abdomen diagnosis dini (Ed. ke-14). Yogyakarta: Yayasan Essentia Medica.

Gaya MLA

Cope, Zachary., Hartono, Andri. "The Early diagnosis of the acute abdomen : akut abdomen diagnosis dini". Ed. ke-14 Yogyakarta: Yayasan Essentia Medica, 1980. Text.