Cordilleras Nevadas del Peru : (parte norte) /
Ricker, John.
[Banff] : Alpine Club of Canada ; [New York] : American Alpine Club,
[1980]
Kammkarte type map.
Incomplete.
Map 1. Cordilleras Rosko y Blanca, Champara -- Map 2. Cordillera Blanca, hoja norte -- Map 3. Cordillera Blanca, hoja central -- Map 4. Cordillera Blanca, hoja sur.
Other copies of these maps accompany "Yuraq Janka: guide to the Peruvian Andes Part 1: Cordilleras Blanca and Rosko / by John F. Ricker".