Cita APA (7a ed.)
Sperling, L., & Loevinsohn, M. (1992). Can poor farmers get and keep the seed they value?
Cita Chicago Style (17a ed.)
Sperling, L., y ME Loevinsohn. Can Poor Farmers Get and Keep the Seed They Value? 1992.
Cita MLA (9a ed.)
Sperling, L., y ME Loevinsohn. Can Poor Farmers Get and Keep the Seed They Value? 1992.
Precaución: Estas citas no son 100% exactas.