Harker, A. (1960). Petrology for students: An introduction to the study of rocks under the microscope (8th ed.).
Chicago Edition CitationHarker, Alfred. Petrology for Students: An Introduction to the Study of Rocks Under the Microscope. 8th ed. 1960.
MLA Edition CitationHarker, Alfred. Petrology for Students: An Introduction to the Study of Rocks Under the Microscope. 8th ed. 1960.
Warning: These citations may not always be 100% accurate.