Cary, Peter R.; Cary, Peter R.. (1991). Proceedings of the symposium on aquatic weed management, Bogor, Indonesia, 15-17 May 1990 / editors: Peter R. Cary... [et al.]. Bogor:: SEAMEO BIOTROP,.
Cary, Peter R.; Cary, Peter R.. Proceedings of the symposium on aquatic weed management, Bogor, Indonesia, 15-17 May 1990 / editors: Peter R. Cary... [et al.]. Bogor:: SEAMEO BIOTROP,, 1991
Cary, Peter R.; Cary, Peter R.. Proceedings of the symposium on aquatic weed management, Bogor, Indonesia, 15-17 May 1990 / editors: Peter R. Cary... [et al.]. Bogor:: SEAMEO BIOTROP,, 1991.