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MLA

Smith, William K, and R.A Brink. "Relation of Bitterness to the Toxic Principle In Sweetclover." , 145-154.. Print

APA

Smith, W. K, & Brink, R. (0000). Relation of Bitterness to the Toxic Principle in Sweetclover.

Chicago

Smith, William K., and R.A Brink. "Relation of Bitterness to the Toxic Principle in Sweetclover" (1938): 145-154..