APA (7th ed.) Citation

Laigo, A. M. (1979). Towards greater profits: The sales trainer's primer. [publisher not identified].

Chicago Style (17th ed.) Citation

Laigo, Alberto M. Towards Greater Profits: The Sales Trainer's Primer. Manila: [publisher not identified], 1979.

MLA (9th ed.) Citation

Laigo, Alberto M. Towards Greater Profits: The Sales Trainer's Primer. [publisher not identified], 1979.