APA

Farndon J., Dunning M., . (1992). How the earth works. London: Dorling Kindersley.

Chicago

Farndon John, Dunning Mike, . 1992. How the earth works. London: Dorling Kindersley.

Harvard

Farndon J., Dunning M., . (1992). How the earth works. London: Dorling Kindersley.

MLA

Farndon John, Dunning Mike, . How the earth works. London: Dorling Kindersley. 1992.