APA (7th ed.) Citation

Nichols, H. L., & Schwagerman, H. (1955). Moving the earth: The workbook of excavation. North Castle Books.

Chicago Style (17th ed.) Citation

Nichols, Herbert L., and Helen Schwagerman. Moving the Earth: The Workbook of Excavation. Greenwich, Con.: North Castle Books, 1955.

MLA (8th ed.) Citation

Nichols, Herbert L., and Helen Schwagerman. Moving the Earth: The Workbook of Excavation. North Castle Books, 1955.