APA (7th ed.) Citation

Gregory, L., & Gregory, W. R. (2004). The Kiltartan History Book. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gregory, Lady, and William Robert Gregory. The Kiltartan History Book. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Gregory, Lady, and William Robert Gregory. The Kiltartan History Book. Project Gutenberg, 2004.

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