1. Principles of Paleoecology;Ager,1963
2. The adaptation of Mesozoic brachiopods to different environments;Ager;Palaeogeogr., Palaeoclimatol., Palaeoecol.,1965
3. The nature of the stratigraphical record;Ager,1973
4. The western High Atlas of Morocco and their significance in the history of the north Atlantic;Ager,1974
5. Etude géologique du versant méridional du Haut Atlas occidental et de la plaine du Souss;Ambroggi;Notes Mém. Serv. Géol. Maroc.,1963