Cita APA (7a ed.)
Barker, T. Can variety and variation coexist?
Cita Chicago Style (17a ed.)
Barker, T.B. Can Variety and Variation Coexist?
Cita MLA (9a ed.)
Barker, T.B. Can Variety and Variation Coexist?
Precaución: Estas citas no son 100% exactas.