APA (7th ed.) Citation

Johnson, G. R., & Epstein, H. I. (1977). Backfill Effects on Circular Foundation Stiffnesses. Journal of the Geotechnical Engineering Division, 103(GT8), 899. https://doi.org/10.1061/ajgeb6.0000474

Chicago Style (17th ed.) Citation

Johnson, Gordon R., and Howard I. Epstein. "Backfill Effects on Circular Foundation Stiffnesses." Journal of the Geotechnical Engineering Division 103, no. GT8 (1977): 899. https://doi.org/10.1061/ajgeb6.0000474.

MLA (9th ed.) Citation

Johnson, Gordon R., and Howard I. Epstein. "Backfill Effects on Circular Foundation Stiffnesses." Journal of the Geotechnical Engineering Division, vol. 103, no. GT8, 1977, p. 899, https://doi.org/10.1061/ajgeb6.0000474.