Gaya APA

IMO Publication. (). : John D. Ryder.

Gaya Chicago

IMO Publication. 1997/98 Catalogue. : John D. Ryder, . Text.

Gaya MLA

IMO Publication. 1997/98 Catalogue. : John D. Ryder, . Text.

Gaya Turabian

IMO Publication. : John D. Ryder, . Print.