Gil, Victor M. S., and Nuno C. Oliveira. “On the Use of the Method of Continuous Variations”. Journal of Chemical Education, vol. 67, no. 6, 1990, p. 473, https://doi.org/10.1021/ed067p473.
Gil, V. M. S., & Oliveira, N. C. (1990). On the use of the method of continuous variations. Journal of Chemical Education, 67(6), 473. https://doi.org/10.1021/ed067p473
Gil, Victor M. S., and Nuno C. Oliveira. “On the Use of the Method of Continuous Variations”. Journal of Chemical Education 67, no. 6 (1990): 473. https://doi.org/10.1021/ed067p473.
Gil VMS, Oliveira NC. On the use of the method of continuous variations. Journal of Chemical Education. 1990;67(6):473.