APA (7th ed.) Citation

Hirschfeld, J., & Wheeler, W. H. (1975). Simple models and R.E. ultrapowers. Forcing, Arithmetic, Division Rings, 454, 155-159. https://doi.org/10.1007/BFb0064092

Chicago Style (17th ed.) Citation

Hirschfeld, Joram, and William H. Wheeler. "Simple Models and R.E. Ultrapowers." Forcing, Arithmetic, Division Rings 454 (1975): 155-159. https://doi.org/10.1007/BFb0064092.

MLA (9th ed.) Citation

Hirschfeld, Joram, and William H. Wheeler. "Simple Models and R.E. Ultrapowers." Forcing, Arithmetic, Division Rings, vol. 454, 1975, pp. 155-159, https://doi.org/10.1007/BFb0064092.