APA (7th ed.) Citation

Taddei, E. (1971). Hard as stone. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Taddei, Ezio. Hard as Stone. Freeport, N.Y.: Books for Libraries Press, 1971.

MLA (9th ed.) Citation

Taddei, Ezio. Hard as Stone. Books for Libraries Press, 1971.

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