MLA

Baluarte, Rafael E. Karta öfver Perú / Utgifven Af D.E. Larrabure y unánue Utrikesminister. R.E. Baluarte, Kartograf. George Philip & Son, 1903. https://collections.library.yale.edu/catalog/15821189.

APA, 6th edition

Baluarte, R. E. (1903). Karta öfver Perú / utgifven af D.E. Larrabure y unánue Utrikesminister. R.E. Baluarte, Kartograf. [Maps]. George Philip & Son, https://collections.library.yale.edu/catalog/15821189.