APA (7th ed.) Citation

Harradine, P. W. A. (1977). Philippine postage stamps.

Chicago Style (17th ed.) Citation

Harradine, Peter W. A. Philippine Postage Stamps. 1977.

MLA (9th ed.) Citation

Harradine, Peter W. A. Philippine Postage Stamps. 1977.

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