APA citiranje

Cullen, K. (2007). Pioneers in science: Earth science : the people behind the science. Viva.

Chicago Edition Citation

Cullen, Katherine. Pioneers in Science: Earth Science : The People Behind the Science. New.Delhi: Viva, 2007.

MLA citiranje

Cullen, Katherine. Pioneers in Science: Earth Science : The People Behind the Science. Viva, 2007.

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