APA (7th ed.) Citation
Phillips, F. M., Flinsch, M., Elmore, D., & Sharma, P. Maximum ages of the Côa valley (Portugal) engravings measured with Chlorine-36.
Chicago Style (17th ed.) Citation
Phillips, Fred M., Montgomery Flinsch, David Elmore, and Pankaj Sharma. Maximum Ages of the Côa Valley (Portugal) Engravings Measured with Chlorine-36.
MLA (9th ed.) Citation
Phillips, Fred M., et al. Maximum Ages of the Côa Valley (Portugal) Engravings Measured with Chlorine-36.
Warning: These citations may not always be 100% accurate.