Cita APA (7th ed.)

(1988). Logo, methods and curriculum for teachers / Cleborne D. Maddux, D. LaMont Johnson.

Cita Chicago (17th ed.)

Logo, Methods and Curriculum for Teachers / Cleborne D. Maddux, D. LaMont Johnson. 1988.

Cita MLA (9th ed.)

Logo, Methods and Curriculum for Teachers / Cleborne D. Maddux, D. LaMont Johnson. 1988.