Citazione Stile APA (7a Edizione)

Whymper, E. (1891). Supplementary appendix to Travels amongst the great Andes of the Equator (1a. ed.). John Murray.

Citazione stile Chigago Style (17a edizione)

Whymper, Edward. Supplementary Appendix to Travels Amongst the Great Andes of the Equator. 1a. ed. Londres: John Murray, 1891.

Citatione MLA (9a ed.)

Whymper, Edward. Supplementary Appendix to Travels Amongst the Great Andes of the Equator. 1a. ed. John Murray, 1891.