Cita APA (7a ed.)

Robertson, P. (1994). The new shell book of firsts (3rd ed.). Headline Book Pub.

Cita Chicago Style (17a ed.)

Robertson, Patrick. The New Shell Book of Firsts. 3rd ed. London: Headline Book Pub, 1994.

Cita MLA (9a ed.)

Robertson, Patrick. The New Shell Book of Firsts. 3rd ed. Headline Book Pub, 1994.