Cite
OBSERVATIONS ON THEORIES OF BIBLIOGRAPHIC ORGANIZATION.
MLA
Pings, Vern M. “Observations on Theories of Bibliographic Organization.” American Documentation, vol. 8, no. 4, Oct. 1957, pp. 292–95. EBSCOhost, https://doi.org/10.1002/asi.5090080407.
APA
Pings, V. M. (1957). Observations on Theories of Bibliographic Organization. American Documentation, 8(4), 292–295. https://doi.org/10.1002/asi.5090080407
Chicago
Pings, Vern M. 1957. “Observations on Theories of Bibliographic Organization.” American Documentation 8 (4): 292–95. doi:10.1002/asi.5090080407.