APA (7th ed.) Citation

Perkins, P. G. (1969). Elementary molecular bonding theory / by P.G. Perkins. Methuen.

Chicago Style (17th ed.) Citation

Perkins, P. G. Elementary Molecular Bonding Theory / by P.G. Perkins. Methuen, 1969.

MLA (9th ed.) Citation

Perkins, P. G. Elementary Molecular Bonding Theory / by P.G. Perkins. Methuen, 1969.

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