Cita APA (7a ed.)
Kaufmann, R. R. v., & Fitzhugh, H. (1993). Technical constraints to ruminant livestock production in sub-Saharan Africa. British Society of Animal Production.
Cita Chicago Style (17a ed.)
Kaufmann, Ralph R. von, y H.A Fitzhugh. Technical Constraints to Ruminant Livestock Production in Sub-Saharan Africa. British Society of Animal Production, 1993.
Cita MLA (9a ed.)
Kaufmann, Ralph R. von, y H.A Fitzhugh. Technical Constraints to Ruminant Livestock Production in Sub-Saharan Africa. British Society of Animal Production, 1993.
Precaución: Estas citas no son 100% exactas.