Cita APA (7a ed.)

De Geoffroy, J., Wu, S. M., & Heins, R. W. (1967). Geochemical coverage by spring sampling method in the Southwest Wisconsin zinc area.

Cita Chicago Style (17a ed.)

De Geoffroy, J., S. M. Wu, y R. W. Heins. Geochemical Coverage by Spring Sampling Method in the Southwest Wisconsin Zinc Area. 1967.

Cita MLA (8a ed.)

De Geoffroy, J., et al. Geochemical Coverage by Spring Sampling Method in the Southwest Wisconsin Zinc Area. 1967.