Sumangil, J. P. (1973). The effect of rain and shower in the feeding activity of Cotabato. A. I. D.
Chicago-viite (17. p.)Sumangil, Jesus P. The Effect of Rain and Shower in the Feeding Activity of Cotabato. [Washington, D.C.]: A. I. D, 1973.
MLA-viite (9. p.)Sumangil, Jesus P. The Effect of Rain and Shower in the Feeding Activity of Cotabato. A. I. D, 1973.
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