APA সাইটেশন

Ravindran Nayar, P. N. (1990). Studies on black pepper (piper nigrum L) and some of its wild relatives.

শিকাগো স্টাইলে সাইটেশন

Ravindran Nayar, P N. Studies on Black Pepper (piper Nigrum L) and Some of Its Wild Relatives. 1990.

এমএলএ সাইটেশন

Ravindran Nayar, P N. Studies on Black Pepper (piper Nigrum L) and Some of Its Wild Relatives. 1990.