(1968). Aerial surveys and integrated studies : =: Exploration aerienne et etudes integrees : proceedings of the Toulouse Conference =: actes de la Conference de Toulouse. Paris: Unesco.
Παραπομπή Chicago StyleAerial Surveys and Integrated Studies : =: Exploration Aerienne Et Etudes Integrees : Proceedings of the Toulouse Conference =: Actes De La Conference De Toulouse. Paris: Unesco, 1968.
Παραπομπή MLAAerial Surveys and Integrated Studies : =: Exploration Aerienne Et Etudes Integrees : Proceedings of the Toulouse Conference =: Actes De La Conference De Toulouse. Paris: Unesco, 1968.
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