APA citiranje

Atwater, R., & Lawson, R. (1938). Mr. Popper's penguins. Boston: Little, Brown.

Chicago Style Citation

Atwater, Richard., and Robert Lawson. Mr. Popper's Penguins. Boston: Little, Brown, 1938.

MLA citiranje

Atwater, Richard., and Robert Lawson. Mr. Popper's Penguins. Boston: Little, Brown, 1938.

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