Παραπομπή σε μορφή APA (7η εκδ.)
Seminar for the future for European nature conservation (1998 : Tilburg), European Centre for Nature Conservation (ECNC), Delbaere Ben, & Wolters Rob. (1999). A future for Europe's nature and biodiversity: Proceedings of a seminar held at the occasion of ECNC's 5th anniversary Tilburg, 19 November 1998. European Centre for Nature Conservation (ECNC).
Παραπομπή σε μορφή Chicago (17η εκδ.)
Seminar for the future for European nature conservation (1998 : Tilburg), European Centre for Nature Conservation (ECNC), Delbaere Ben, και Wolters Rob. A Future for Europe's Nature and Biodiversity: Proceedings of a Seminar Held at the Occasion of ECNC's 5th Anniversary Tilburg, 19 November 1998. European Centre for Nature Conservation (ECNC), 1999.
Παραπομπή σε μορφή MLA (9th εκδ.)
Seminar for the future for European nature conservation (1998 : Tilburg), et al. A Future for Europe's Nature and Biodiversity: Proceedings of a Seminar Held at the Occasion of ECNC's 5th Anniversary Tilburg, 19 November 1998. European Centre for Nature Conservation (ECNC), 1999.
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