SpringerLink (Online service), Upreti, D. K., Divakar, P. K., Shukla, V., & Bajpai, R. (2015). Recent Advances in Lichenology: Modern Methods and Approaches in Lichen Systematics and Culture Techniques, Volume 2 (1st ed. 2015.). New Delhi: Springer India : Imprint: Springer.

SpringerLink (Online service), Dalip Kumar Upreti, Pradeep K. Divakar, Vertika Shukla, and Rajesh Bajpai. Recent Advances in Lichenology: Modern Methods and Approaches in Lichen Systematics and Culture Techniques, Volume 2. 1st ed. 2015. New Delhi: Springer India : Imprint: Springer, 2015.

SpringerLink (Online service), et al. Recent Advances in Lichenology: Modern Methods and Approaches in Lichen Systematics and Culture Techniques, Volume 2. 1st ed. 2015. New Delhi: Springer India : Imprint: Springer, 2015.