APA

Bronkhurst M., Gower J. (. )., . (1994). Discovering Gases. London: World Book International.

Chicago

Bronkhurst Martin, Gower Jeremy (Illustrations ), . 1994. Discovering Gases. London: World Book International.

Harvard

Bronkhurst M., Gower J. (. )., . (1994). Discovering Gases. London: World Book International.

MLA

Bronkhurst Martin, Gower Jeremy (Illustrations ), . Discovering Gases. London: World Book International. 1994.