Westermarck, N. (1957). Finnish agriculture. (2nd ed.). Pellervo Society.
Cita Chicago Style (17a ed.)Westermarck, Nil's. Finnish Agriculture. 2nd ed. Helsinki: Pellervo Society, 1957.
Cita MLA (9a ed.)Westermarck, Nil's. Finnish Agriculture. 2nd ed. Pellervo Society, 1957.
Precaución: Estas citas no son 100% exactas.