APA-ийн эшлэл(7 дахь хэвлэлт)

Samper, M. (1990). Generations of settlers: Rural households and markets on the Costa Rican Frontier, 1850-1935. Westview Pr..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Samper, Mario. Generations of Settlers: Rural Households and Markets on the Costa Rican Frontier, 1850-1935. Boulder, Colo.: Westview Pr., 1990.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Samper, Mario. Generations of Settlers: Rural Households and Markets on the Costa Rican Frontier, 1850-1935. Westview Pr., 1990.