APA (7th ed.) Citation

Hartley, H. (1966). Humphry Davy / by Sir Harold Hartley. Nelson.

Chicago Style (17th ed.) Citation

Hartley, Harold. Humphry Davy / by Sir Harold Hartley. Nelson, 1966.

MLA (9th ed.) Citation

Hartley, Harold. Humphry Davy / by Sir Harold Hartley. Nelson, 1966.

Warning: These citations may not always be 100% accurate.