Tohutoro APA (7th ed.)
Scheffer, A. J. (1973). Horse pancreatic Ribonuclease.
Tohutoru Kātū Chicago (17th ed.)
Scheffer, Albert Jan. Horse Pancreatic Ribonuclease. Groningen, 1973.
Tohutoro MLA (9th ed.)
Scheffer, Albert Jan. Horse Pancreatic Ribonuclease. 1973.
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