APA (7th ed.) Citation

Camp, J., Kennedy, X. J., & Twain, M. (1963). Mark Twain's frontier: A textbook of primary source materials for student research and writing. Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Camp, James, X. J. Kennedy, and Mark Twain. Mark Twain's Frontier: A Textbook of Primary Source Materials for Student Research and Writing. New York: Holt, Rinehart and Winston, 1963.

MLA (9th ed.) Citation

Camp, James, et al. Mark Twain's Frontier: A Textbook of Primary Source Materials for Student Research and Writing. Holt, Rinehart and Winston, 1963.