Ravindran Nayar, P. N. (1990). Studies on black pepper (piper nigrum L) and some of its wild relatives.
Chicago Edition CitationRavindran Nayar, P N. Studies on Black Pepper (piper Nigrum L) and Some of Its Wild Relatives. Calicut University, 1990.
MLA Edition CitationRavindran Nayar, P N. Studies on Black Pepper (piper Nigrum L) and Some of Its Wild Relatives. 1990.
Warning: These citations may not always be 100% accurate.