Cifuentes Arias, M. (1983). Biosphere reserves: Clarification of its conceptual framework and design, and application of a methodology for the strategic planning of a national subsystem.
استشهاد بنمط شيكاغوCifuentes Arias, Miguel. Biosphere Reserves: Clarification of Its Conceptual Framework and Design, and Application of a Methodology for the Strategic Planning of a National Subsystem. 1983.
MLA استشهادCifuentes Arias, Miguel. Biosphere Reserves: Clarification of Its Conceptual Framework and Design, and Application of a Methodology for the Strategic Planning of a National Subsystem. 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.