APA (7th ed.) Citation

Verma, S. P., & Luhr, J. F. (1993, October). Sr-Nd-Pb isotope and trace element geochemistry of calc-alkaline andesites from Volcán Colima, Mexico. Geofísica Internacional.

Chicago Style (17th ed.) Citation

Verma, Surendra P., and James F. Luhr. "Sr-Nd-Pb Isotope and Trace Element Geochemistry of Calc-alkaline Andesites from Volcán Colima, Mexico." Geofísica Internacional Oct. 1993.

MLA (9th ed.) Citation

Verma, Surendra P., and James F. Luhr. "Sr-Nd-Pb Isotope and Trace Element Geochemistry of Calc-alkaline Andesites from Volcán Colima, Mexico." Geofísica Internacional, Oct. 1993.

Warning: These citations may not always be 100% accurate.