Cita APA (7a ed.)

Bull, W. E. (1972). Spanish for communication: Level two : Daily lesson plans 121-244. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Bull, William E. Spanish for Communication: Level Two : Daily Lesson Plans 121-244. Boston [etc.]: Houghton Mifflin, 1972.

Cita MLA (9a ed.)

Bull, William E. Spanish for Communication: Level Two : Daily Lesson Plans 121-244. Houghton Mifflin, 1972.