APA (7th ed.) Citation

Crawley, H. (1993). Food portion sizes (2nd ed.). H.M.S.O..

Chicago Style (17th ed.) Citation

Crawley, Helen. Food Portion Sizes. 2nd ed. London: H.M.S.O., 1993.

MLA (9th ed.) Citation

Crawley, Helen. Food Portion Sizes. 2nd ed. H.M.S.O., 1993.

Warning: These citations may not always be 100% accurate.