APA (7th ed.) Citation

Lem, S., & Kandel, M. (1999). A perfect vacuum. Northwestern University Press.

Chicago Style (17th ed.) Citation

Lem, Stanislaw, and Michael;Lem Kandel. A Perfect Vacuum. Northwestern University Press, 1999.

MLA (9th ed.) Citation

Lem, Stanislaw, and Michael;Lem Kandel. A Perfect Vacuum. Northwestern University Press, 1999.

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