APA Citatie

(1978). The Methodology of Photo Interpretation of Mass Movements With Special Reference To the Spanish Pyrenees, Tremp, Northern Spain. General Directorate of Mineral Research and Exploration.

Chicago Style citaat

The Methodology of Photo Interpretation of Mass Movements With Special Reference To the Spanish Pyrenees, Tremp, Northern Spain. General Directorate of Mineral Research and Exploration, 1978.

MLA citatie

The Methodology of Photo Interpretation of Mass Movements With Special Reference To the Spanish Pyrenees, Tremp, Northern Spain. General Directorate of Mineral Research and Exploration, 1978.