APA (7th ed.) Citation

(1935). Petrology for students: An introduction to the study of rocks under the microscope, by Alfred Harker.

Chicago Style (17th ed.) Citation

Petrology for Students: An Introduction to the Study of Rocks Under the Microscope, by Alfred Harker. 1935.

MLA (9th ed.) Citation

Petrology for Students: An Introduction to the Study of Rocks Under the Microscope, by Alfred Harker. 1935.

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