Παραπομπή APA

Pottekkattu, S. K. (1990). Nisagandhi. Sumithra Jayaprakash; sold by NBS.

Παραπομπή Chicago Style

Pottekkattu, S. K. Nisagandhi. Kottayam: Sumithra Jayaprakash; sold by NBS, 1990.

Παραπομπή MLA

Pottekkattu, S. K. Nisagandhi. Sumithra Jayaprakash; sold by NBS, 1990.