Cita APA (7th ed.)

ENG CHUAGOON. (1987). MANAGEMENT OF BUSINESS (4.). MCGRAW-HILL.

Cita Chicago (17th ed.)

ENG CHUAGOON. MANAGEMENT OF BUSINESS. 4. SINGAPORE: MCGRAW-HILL, 1987.

Cita MLA (9th ed.)

ENG CHUAGOON. MANAGEMENT OF BUSINESS. 4. MCGRAW-HILL, 1987.