Παραπομπή APA

Singh, V. K. G. (2007). Recent progress in medicinal plants, Vol.15: Natural products.

Παραπομπή Chicago Style

Singh, V K; Govil. Recent Progress in Medicinal Plants, Vol.15: Natural Products. Studium Press, USA, 2007.

Παραπομπή MLA

Singh, V K; Govil. Recent Progress in Medicinal Plants, Vol.15: Natural Products. 2007.