APA (7th ed.) Citation

Lowry, J. H. (1970). World population and food supply (2nd. ed.). E. Arnold.

Chicago Style (17th ed.) Citation

Lowry, J. H. World Population and Food Supply. 2nd. ed. London: E. Arnold, 1970.

MLA (9th ed.) Citation

Lowry, J. H. World Population and Food Supply. 2nd. ed. E. Arnold, 1970.