Cita APA

(1993). The Dorling Kindersley science encyclopedia (1st American ed.). Dorling Kindersley.

Chicago Edition Citation

The Dorling Kindersley Science Encyclopedia. 1st American ed. London: Dorling Kindersley, 1993.

Cita MLA

The Dorling Kindersley Science Encyclopedia. 1st American ed. Dorling Kindersley, 1993.

Atenció: Aquestes cites poden no estar 100% correctes.