Cita APA (7th ed.)

VASUDEVA, D. (1969). A text book of light 7th ed. Atma Ram.

Cita Chicago (17th ed.)

VASUDEVA, D.N. A Text Book of Light 7th Ed. Delhi: Atma Ram, 1969.

Cita MLA (9th ed.)

VASUDEVA, D.N. A Text Book of Light 7th Ed. Atma Ram, 1969.