APA (7th ed.) Citation

Johnson, E., & Liu, J. C. (2021). Introduction to Petrology. VIVA.

Chicago Style (17th ed.) Citation

Johnson, Elizabeth, and Juhong Christie Liu. Introduction to Petrology. [Place of publication not identified]: VIVA, 2021.

MLA (9th ed.) Citation

Johnson, Elizabeth, and Juhong Christie Liu. Introduction to Petrology. VIVA, 2021.