Goulty, G. A. (1991). A dictionary of landscape: A dictionary of terms used in the description of the world's land surface. Aldershot: Avebury Technical.
Παραπομπή Chicago StyleGoulty, George A. A Dictionary of Landscape: A Dictionary of Terms Used in the Description of the World's Land Surface. Aldershot: Avebury Technical, 1991.
Παραπομπή MLAGoulty, George A. A Dictionary of Landscape: A Dictionary of Terms Used in the Description of the World's Land Surface. Aldershot: Avebury Technical, 1991.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.