Cita APA (7a ed.)

Holloway, S. H. ., & Four, R. d.. (1977). SMP basic mathematics: Book 1. Cambridge University Press.

Cita Chicago Style (17a ed.)

Holloway, S. H. , y R. de Four. SMP Basic Mathematics: Book 1. Cambridge [etc.]: Cambridge University Press, 1977.

Cita MLA (9a ed.)

Holloway, S. H. , y R. de Four. SMP Basic Mathematics: Book 1. Cambridge University Press, 1977.