Cita APA (7a ed.)
Howeler, R. H. (2012). Soil fertility maintenance: Organic solutions. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Howeler, Reinhardt H. Soil Fertility Maintenance: Organic Solutions. International Center for Tropical Agriculture, 2012.
Cita MLA (9a ed.)
Howeler, Reinhardt H. Soil Fertility Maintenance: Organic Solutions. International Center for Tropical Agriculture, 2012.
Precaución: Estas citas no son 100% exactas.