Indigenous drugs of India : their medical and economic aspects Dahkki Chopra, R.N

Green revolution in India Dahkki Chopra, R.N

Biology of bryophytes Dahkki Chopra , R.N

Indian ephedras : their chemistry and pharmacology Dahkki Chopra, R.N

Food policy in India : a survey Dahkki Chopra, R.N

Common medicinal plants of Darjeeling and the Sikkim Himalayas Dahkki Biswas, K.

Eará dahkkit: “…Chopra, R.N…”

Insecticidal and piscicidal plants of India Dahkki Badhwar, R.L

Eará dahkkit: “…Chopra, R.N…”

Dictionary of library science

Eará dahkkit: “…Chopra , R.N., ed…”

Supplement to glossary of Indian medicinal plants Dahkki Chopra, I.C

Eará dahkkit: “…Chopra, R.N…”

Glossary of Indian medicinal plants Dahkki Chopra, I.C

Eará dahkkit: “…Chopra, R.N…”