APA (7th ed.) Citation

Bathe, G., & Bathe, D. (1943). Jacob Perkins, his inventions, his times, & his contemporaries. The Historical society of Pennsylvania.

Chicago Style (17th ed.) Citation

Bathe, Greville, and Dorothy Bathe. Jacob Perkins, His Inventions, His Times, & His Contemporaries. Philadelphia: The Historical society of Pennsylvania, 1943.

MLA (9th ed.) Citation

Bathe, Greville, and Dorothy Bathe. Jacob Perkins, His Inventions, His Times, & His Contemporaries. The Historical society of Pennsylvania, 1943.