APA استشهاد

Duffy, J. A. (1990). Bonding, energy levels and bonds in inorganic solids.

استشهاد بنمط شيكاغو

Duffy, J A. Bonding, Energy Levels and Bonds in Inorganic Solids. Essex : Longman scientific and technical, 1990.

MLA استشهاد

Duffy, J A. Bonding, Energy Levels and Bonds in Inorganic Solids. 1990.