Cita APA (7a ed.)

DENHOLM, R. A., & BLANK, V. Mathematics: Structure and skills. SRA.

Cita Chicago Style (17a ed.)

DENHOLM, Richard A., y V.Dale BLANK. Mathematics: Structure and Skills. Chicago: SRA.

Cita MLA (9a ed.)

DENHOLM, Richard A., y V.Dale BLANK. Mathematics: Structure and Skills. SRA.