APA (7th ed.) Citation

O'Neill, B. (1966). Elementary differential geometry (2nd ed.). Academic Press.

Chicago Style (17th ed.) Citation

O'Neill, Barrett. Elementary Differential Geometry. 2nd ed. San Diego: Academic Press, 1966.

MLA (9th ed.) Citation

O'Neill, Barrett. Elementary Differential Geometry. 2nd ed. Academic Press, 1966.

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