An environmental profile of the greater Yellowstone ecosystem
1991
Glick, Dennis |
Carr, Mary |
Harting, Bert |
Ecosystem surveys
Two studies of Tinicum Marsh, Delaware and Philadelphia counties, Pennsylvania
1970
McCormick, Jack |
Grant, Robert R. |
Ruth Patrick |
Analysis of structure, function and utilization of grassland ecosystems
Van Dyne, George M. |
Sequoia and Kings Canyon : natural sciences research plan
1966
Sumner, Lowell |
Sprugel, George |
Linn, Robert M. |
Report on a preliminary management survey of the proposed Panay Mountains National Park, Republic of the Philippines
1987
Cox, Charles Roger |
Bases para el establicimiento del sector peruano de la futura reserva binacional UllaUlla - Cojata
1972
Tovar S., Augusto |
Rios Rodriguez, Manuel A. |
Dourojeanni, Marc J. |
Galápagos : die Arche Noah im Pazifik
1977
Eibl-Eibesfeldt, Irenäus |