APA (7th ed.) Citation

Schwartz, F. E. (1991). The EDI Horizon. Serials Librarian, 19(3-4), 39. https://doi.org/10.1300/J123v19n03_06

Chicago Style (17th ed.) Citation

Schwartz, Frederick E. "The EDI Horizon." Serials Librarian 19, no. 3-4 (1991): 39. https://doi.org/10.1300/J123v19n03_06.

MLA (9th ed.) Citation

Schwartz, Frederick E. "The EDI Horizon." Serials Librarian, vol. 19, no. 3-4, 1991, p. 39, https://doi.org/10.1300/J123v19n03_06.