Singewald, Q. D., & Butler, B. S. (1933). Suggestions for prospecting in the Alma district, Colorado. Proceedings of the Colorado Scientific Society, 13(4), 89.
Chicago Style (17th ed.) CitationSingewald, Q. D., and B. S. Butler. "Suggestions for Prospecting in the Alma District, Colorado." Proceedings of the Colorado Scientific Society 13, no. 4 (1933): 89.
MLA (9th ed.) CitationSingewald, Q. D., and B. S. Butler. "Suggestions for Prospecting in the Alma District, Colorado." Proceedings of the Colorado Scientific Society, vol. 13, no. 4, 1933, p. 89.
Warning: These citations may not always be 100% accurate.