Ramanathan, N. and Sivapalan, A., 1988. Some observations on the downy mildew disease of grape vine caused by Plasmopara viticola in Jaffna. Journal of the National Science Foundation of Sri Lanka, 16(1), pp.11–22. DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274

Ramanathan N, Sivapalan A. Some observations on the downy mildew disease of grape vine caused by Plasmopara viticola in Jaffna. Journal of the National Science Foundation of Sri Lanka. 1988;16(1):11–22. DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274

Ramanathan, N., & Sivapalan, A. (1988). Some observations on the downy mildew disease of grape vine caused by Plasmopara viticola in Jaffna. Journal of the National Science Foundation of Sri Lanka, 16(1), 11–22. DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274

Ramanathan N and Sivapalan A, ‘Some Observations on the Downy Mildew Disease of Grape Vine Caused by plasmopara Viticola in Jaffna’ (1988) 16 Journal of the National Science Foundation of Sri Lanka 11 DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274

Ramanathan, Niranjani, and A. Sivapalan. 1988. “Some Observations on the Downy Mildew Disease of Grape Vine Caused by plasmopara Viticola in Jaffna”. Journal of the National Science Foundation of Sri Lanka 16 (1): 11–22. DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274

Ramanathan, Niranjani, and A. Sivapalan. “Some Observations on the Downy Mildew Disease of Grape Vine Caused by plasmopara Viticola in Jaffna”. Journal of the National Science Foundation of Sri Lanka 16, no. 1 (1988): 11–22. DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274

Ramanathan, N.and A. Sivapalan. “Some Observations on the Downy Mildew Disease of Grape Vine Caused by plasmopara Viticola in Jaffna”. Journal of the National Science Foundation of Sri Lanka, vol. 16, no. 1, 1988, pp. 11–22. DOI: http://doi.org/10.4038/jnsfsr.v16i1.8274