Cita APA (7th ed.)

Pluckrose, H. A. (1967). Introducing crayon techniques. Batsford.

Cita Chicago (17th ed.)

Pluckrose, Henry Arthur. Introducing Crayon Techniques. London: Batsford, 1967.

Cita MLA (9th ed.)

Pluckrose, Henry Arthur. Introducing Crayon Techniques. Batsford, 1967.