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MLA

Swingle, Charles F. "Burrknot Formations In Relation to the Vascular System of the Apple Stem." , 533-544.. Print

APA

Swingle, C. F. (0000). Burrknot Formations in Relation to the Vascular System of the Apple Stem.

Chicago

Swingle, Charles F. "Burrknot Formations in Relation to the Vascular System of the Apple Stem" (1927): 533-544..