Dyfyniad APA

Gruenberg, B. C., Snyder, E. E., & Miller, J. V. (1946). A workbook for students of biology. Ginn and Company.

Dyfyniad Arddull Chicago

Gruenberg, Benjamin C., Emily Eveleth Snyder, and Jesse V. Miller. A Workbook for Students of Biology. Boston: Ginn and Company, 1946.

Dyfyniad MLA

Gruenberg, Benjamin C., et al. A Workbook for Students of Biology. Ginn and Company, 1946.

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