एपीए उद्धरण

Willaims, H. (1954). Petrography: An introduction to the study of rock in thin sections. VFS.

शिकागो स्टाइल उद्धरण

Willaims, Howel. Petrography: An Introduction to the Study of Rock in Thin Sections. Bombay: VFS, 1954.

एमएलए उद्धरण

Willaims, Howel. Petrography: An Introduction to the Study of Rock in Thin Sections. VFS, 1954.