Watts, I. (1772). The knowledge of the heavens and the earth made easy: Or, the first principles of astronomy and geography explained by the use of globes and maps. ... By I. Watts, D.D (The eighth edition, corrected.). printed for T. Longman, and J. Buckland; T. Field; E. and C. Dilly; and G. Pearch.
Chicago Style (17th ed.) CitationWatts, Isaac. The Knowledge of the Heavens and the Earth Made Easy: Or, the First Principles of Astronomy and Geography Explained by the Use of Globes and Maps. ... By I. Watts, D.D. The eighth edition, corrected. London: printed for T. Longman, and J. Buckland; T. Field; E. and C. Dilly; and G. Pearch, 1772.
MLA (9th ed.) CitationWatts, Isaac. The Knowledge of the Heavens and the Earth Made Easy: Or, the First Principles of Astronomy and Geography Explained by the Use of Globes and Maps. ... By I. Watts, D.D. The eighth edition, corrected. printed for T. Longman, and J. Buckland; T. Field; E. and C. Dilly; and G. Pearch, 1772.