Aquatic plant studies
Elsevier , Distributors for the United States and Canada : Elsevier Science Pub. Co
[edited by] A.W.D. Larkum, A.J. McComb, S.A. Shepherd
Elsevier 1989 Aquatic plant studies 2
Available at 9 libraries
Brij Gopal
Elsevier 1987 Aquatic plant studies 1
Available at 11 libraries