APA-čujuhus (7. p.)
Willard, L. C. (2009). A critical study of the Euthalian apparatus. Walter de Gruyter.
Chicago-čujuhus (17. p.)
Willard, Louis Charles. A Critical Study of the Euthalian Apparatus. Berlin ; New York: Walter de Gruyter, 2009.
MLA-čujuhus (9. p.)
Willard, Louis Charles. A Critical Study of the Euthalian Apparatus. Walter de Gruyter, 2009.
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