Cita APA (7a ed.)

(1968). Currrent concepts for agronomic education. Américan Society of Agronomy.

Cita Chicago Style (17a ed.)

Currrent Concepts for Agronomic Education. Madison: Américan Society of Agronomy, 1968.

Cita MLA (8a ed.)

Currrent Concepts for Agronomic Education. Américan Society of Agronomy, 1968.