Cita APA (7a ed.)

Spear, W. (1977). Amorphous and liquid semiconductors (1a ed.). [s.n.].

Cita Chicago Style (17a ed.)

Spear, W.E. Amorphous and Liquid Semiconductors. 1a ed. Edinburgh: [s.n.], 1977.

Cita MLA (9a ed.)

Spear, W.E. Amorphous and Liquid Semiconductors. 1a ed. [s.n.], 1977.