Cita APA (7a ed.)

Branom, F. K., & Ganey, H. M. (1938). Our earth and our needs: [third grade]. William H. Sadlier.

Cita Chicago Style (17a ed.)

Branom, Frederick K., y Helen M. Ganey. Our Earth and Our Needs: [third Grade]. New York Chicago: William H. Sadlier, 1938.

Cita MLA (9a ed.)

Branom, Frederick K., y Helen M. Ganey. Our Earth and Our Needs: [third Grade]. William H. Sadlier, 1938.