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MLA

Harrington, George T, and William Crocker. "Structure, Physical Characteristics, and Composition of the Pericarp and Integument of Johnson Grass Seed In Relation to Its Physiology." , 193-222.. Print

APA

Harrington, G. T, & Crocker, W. (0000). Structure, Physical Characteristics, and Composition of the Pericarp and Integument of Johnson Grass Seed in Relation to its Physiology.

Chicago

Harrington, George T., and William Crocker. "Structure, Physical Characteristics, and Composition of the Pericarp and Integument of Johnson Grass Seed in Relation to its Physiology" (1923): 193-222..