APA Citatie

Hudson,Travis. (2011). Living with earth: An introduction to environmental geology. Pearson education.

Chicago Style citaat

Hudson,Travis. Living with Earth: An Introduction to Environmental Geology. Boston: Pearson education, 2011.

MLA citatie

Hudson,Travis. Living with Earth: An Introduction to Environmental Geology. Pearson education, 2011.

Let op: Deze citaties zijn niet altijd 100% accuraat.