Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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