APA (7th ed.) Citation

Seeman, M. F. (1978). The Hopewell interaction sphere.

Chicago Style (17th ed.) Citation

Seeman, Mark Frederic. The Hopewell Interaction Sphere. 1978.

MLA (9th ed.) Citation

Seeman, Mark Frederic. The Hopewell Interaction Sphere. 1978.

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