Hasholt, B. (1999) “I. W. Heathcote: Integrated Watershed Management - principles and practice. New York, Wiley, 1998. x, 414 s., ill., 24 cm. G8P60,-”., Geografisk Tidsskrift, 99. Tilgængelig hos: https://tidsskrift.dk/geografisktidsskrift/article/view/42371 (Set: 5 december 2025).