Whymper, E. (1891). Supplementary appendix to Travels amongst the great Andes of the Equator (1a. ed.). John Murray.
Chicago Style (17. basım) AtıfWhymper, Edward. Supplementary Appendix to Travels Amongst the Great Andes of the Equator. 1a. ed. Londres: John Murray, 1891.
MLA (9th ed.) AtıfWhymper, Edward. Supplementary Appendix to Travels Amongst the Great Andes of the Equator. 1a. ed. John Murray, 1891.
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