Cita APA (7a ed.)

Worrall,W.E. (1968). Clays, their nature, origin and general properties. MacLaren.

Cita Chicago Style (17a ed.)

Worrall,W.E. Clays, Their Nature, Origin and General Properties. London - INGL: MacLaren, 1968.

Cita MLA (8a ed.)

Worrall,W.E. Clays, Their Nature, Origin and General Properties. MacLaren, 1968.