Cita APA

Bhattacharya,R N, & Bhattacharya , R. .. N. (1996). Coal chemicals. Allied publishers Ltd.

Chicago Edition Citation

Bhattacharya,R N, i R . N. Bhattacharya. Coal Chemicals. New Delhi: Allied publishers Ltd, 1996.

Cita MLA

Bhattacharya,R N, i R . N. Bhattacharya. Coal Chemicals. Allied publishers Ltd, 1996.