Cita APA (7a ed.)

Propp, D., & Walton, R. (1977). Texas State Documents: The Development of a Program.

Cita Chicago Style (17a ed.)

Propp, Dale, y Robert Walton. Texas State Documents: The Development of a Program. 1977.

Cita MLA (9a ed.)

Propp, Dale, y Robert Walton. Texas State Documents: The Development of a Program. 1977.