Cita APA (7th ed.)

Crouch, R. B., & Beckman, D. N. (1970). The structure of abstract algebra. Scott, Foresman and Company.

Cita Chicago (17th ed.)

Crouch, Ralph B., i David N. Beckman. The Structure of Abstract Algebra. Glenview: Scott, Foresman and Company, 1970.

Cita MLA (9th ed.)

Crouch, Ralph B., i David N. Beckman. The Structure of Abstract Algebra. Scott, Foresman and Company, 1970.