APA (7th ed.) Citation
Irvine, D. E. G., & Seshold, M. Errors in Postage Stamp Design.
Chicago Style (17th ed.) Citation
Irvine, David E. G., and Maxwell Seshold. Errors in Postage Stamp Design.
MLA (9th ed.) Citation
Irvine, David E. G., and Maxwell Seshold. Errors in Postage Stamp Design.
Warning: These citations may not always be 100% accurate.