Van Dobben, W.H. & Lowe-McConnell, R.H. (Editors). — Unifying Concepts in Ecology. Report of the plenary sessions of the First international congress of ecology , The Hague, the Netherlands, September 8-14, 1974. The Hague, D.W. Junk B.V. Publishers, 1975

Bourlière François. Van Dobben, W.H. & Lowe-McConnell, R.H. (Editors). — Unifying Concepts in Ecology. Report of the plenary sessions of the First international congress of ecology , The Hague, the Netherlands, September 8-14, 1974. The Hague, D.W. Junk B.V. Publishers, 1975. In: La Terre et La Vie, Revue d'Histoire naturelle, tome 30, n°2, 1976. pp. 307-308