APA (7th ed.) Citation

Riggans, W. (1983). Numbers. St. Andrew Press.

Chicago Style (17th ed.) Citation

Riggans, Walter. Numbers. Edinburgh: St. Andrew Press, 1983.

MLA (9th ed.) Citation

Riggans, Walter. Numbers. St. Andrew Press, 1983.

Warning: These citations may not always be 100% accurate.