APA (7th ed.) Citation

Di Roma, E., & Rosenthal, J. A. (1971). A numerical finding list of British command papers published 1833-1961/62. New York Public Library.

Chicago Style (17th ed.) Citation

Di Roma, Edward, and Joseph A. Rosenthal. A Numerical Finding List of British Command Papers Published 1833-1961/62. New York: New York Public Library, 1971.

MLA (9th ed.) Citation

Di Roma, Edward, and Joseph A. Rosenthal. A Numerical Finding List of British Command Papers Published 1833-1961/62. New York Public Library, 1971.