Cita APA (7a ed.)
O'Connor, C. (1990). Improved local churn makes more butter, quicker.
Cita Chicago Style (17a ed.)
O'Connor, C.B. Improved Local Churn Makes More Butter, Quicker. 1990.
Cita MLA (9a ed.)
O'Connor, C.B. Improved Local Churn Makes More Butter, Quicker. 1990.
Precaución: Estas citas no son 100% exactas.