APA Edition Citation

Seyfert, C. K. A., & Sirkin, L. A. (1973). Earth history and plate tectonica.

Chicago Edition Citation

Seyfert, Carl K. And, and Leslie A. Sirkin. Earth History and Plate Tectonica. 1973.

MLA Edition Citation

Seyfert, Carl K. And, and Leslie A. Sirkin. Earth History and Plate Tectonica. 1973.

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