APA (7th ed.) Citation

Magill, K., & Subbiah, S. (1977). The partially ordered collection of regular ℛ-classes of S(X). Aequationes Mathematicae, 15(1), 91. https://doi.org/10.1007/BF01837877

Chicago Style (17th ed.) Citation

Magill, K., and S. Subbiah. "The Partially Ordered Collection of Regular ℛ-classes of S(X)." Aequationes Mathematicae 15, no. 1 (1977): 91. https://doi.org/10.1007/BF01837877.

MLA (9th ed.) Citation

Magill, K., and S. Subbiah. "The Partially Ordered Collection of Regular ℛ-classes of S(X)." Aequationes Mathematicae, vol. 15, no. 1, 1977, p. 91, https://doi.org/10.1007/BF01837877.