APA (7th ed.) Citation
Whymper, E. (1891). Supplementary Appendix to travels amongst the great Andes of the Equator.
Chicago Style (17th ed.) Citation
Whymper, Edward. Supplementary Appendix to Travels Amongst the Great Andes of the Equator. London, 1891.
MLA (9th ed.) Citation
Whymper, Edward. Supplementary Appendix to Travels Amongst the Great Andes of the Equator. 1891.
Warning: These citations may not always be 100% accurate.