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MLA

Langworthy, C. F, et al. "The Functions and Uses of Food." , p.. Print

APA

Langworthy, C. F, True, A. Charles, United States, U. States, & Department of Agriculture, D. of Agriculture. (0000). The functions and uses of food.

Chicago

Langworthy, C. F., Alfred Charles True, United States, and Department of Agriculture. "The functions and uses of food" (1906): p..