Gray, F. W. (1914). A manual of practical physical chemistry. Macmillan and Co., Limited.
Lua i Stíl Chicago (17ú heag.)Gray, Francis William. A Manual of Practical Physical Chemistry. London: Macmillan and Co., Limited, 1914.
Lua MLA (8ú heag.)Gray, Francis William. A Manual of Practical Physical Chemistry. Macmillan and Co., Limited, 1914.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.