APA (7th ed.) Citation

Twain, M., Huggins, V., & McHarg, J. (1979). The prince & the poor boy (1st published, 3rd impression.). Collins.

Chicago Style (17th ed.) Citation

Twain, Mark, Viola Huggins, and Jim McHarg. The Prince & the Poor Boy. 1st published, 3rd impression. London [etc.]: Collins, 1979.

MLA (9th ed.) Citation

Twain, Mark, et al. The Prince & the Poor Boy. 1st published, 3rd impression. Collins, 1979.