APA (7th ed.) Citation

Schwarzschild, L. (1944). Primer of the coming world. Hamilton.

Chicago Style (17th ed.) Citation

Schwarzschild, Leopold. Primer of the Coming World. London: Hamilton, 1944.

MLA (8th ed.) Citation

Schwarzschild, Leopold. Primer of the Coming World. Hamilton, 1944.

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