Παραπομπή APA

Sandford, C., & Vaish, M. B. (1971). Principles of economics. The Macmillan press limited.

Παραπομπή Chicago Style

Sandford, C.T, και M.C. Bradbury Vaish. Principles of Economics. London: The Macmillan press limited, 1971.

Παραπομπή MLA

Sandford, C.T, και M.C. Bradbury Vaish. Principles of Economics. The Macmillan press limited, 1971.