APA (7th ed.) Citation

Munn, M. S., & Hayward, S. M. How much shall I buy? A mathematical approach to ordering. Imperial Chemical industries.

Chicago Style (17th ed.) Citation

Munn, Mary S., and Sarah M. Hayward. How Much Shall I Buy? A Mathematical Approach to Ordering. [S.L.]: Imperial Chemical industries.

MLA (8th ed.) Citation

Munn, Mary S., and Sarah M. Hayward. How Much Shall I Buy? A Mathematical Approach to Ordering. Imperial Chemical industries.