APA引文

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

芝加哥风格引文

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

MLA引文

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