Vijaraghavan, M.R. Chlorophyta structure, ultrastructure and reproduction M.R. Vijaraghavan and, Sunita Kumari. - 2nd ed.. - Dehradun Bishen Singh Mahendrapal Singh 1995 - xv,262p., col.ill.; 23cm. ISBN: 81-211-0098-4. Dewey Class. No.: 589.47 / V70C