APA (7th ed.) Citation

Keppe, N. R., Hall, J., & Kowarick, M. P. (1989). Work & capital. Proton Pub. House.

Chicago Style (17th ed.) Citation

Keppe, Norberto R., John Hall, and Margaret Pinckard Kowarick. Work & Capital. London: Proton Pub. House, 1989.

MLA (9th ed.) Citation

Keppe, Norberto R., et al. Work & Capital. Proton Pub. House, 1989.