APA-čujuhus (7. p.)

Karp, D. S., & Hernández, R. G. (2011). Conversational noise reduction as a win-win for ecotourists and rain forest birds in Peru. Biotropica.

Chicago-čujuhus (17. p.)

Karp, Daniel S., juo Roger Guevara Hernández. Conversational Noise Reduction as a Win-win for Ecotourists and Rain Forest Birds in Peru. Biotropica, 2011.

MLA-čujuhus (9. p.)

Karp, Daniel S., juo Roger Guevara Hernández. Conversational Noise Reduction as a Win-win for Ecotourists and Rain Forest Birds in Peru. Biotropica, 2011.

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