APA Edition Citation

Helson, H., Yadav, B. S., & Singh, U. N. (1990). Invariant subspaces and allied topics. Narosa Pub. House.

Chicago Edition Citation

Helson, Henry, B. S. Yadav, and Udita Narayana Singh. Invariant Subspaces and Allied Topics. New Delhi: Narosa Pub. House, 1990.

MLA Edition Citation

Helson, Henry, et al. Invariant Subspaces and Allied Topics. Narosa Pub. House, 1990.