Natura
1955
Nature reserves
Plano de manejo para o parque estadual da Cantareira
1974
Correa de Negreiros, Osmar |
Carvalho, C. T. de (Cory Teixeira de) |
Fonseca cesar, Sebastiao |
Romariz Duarte, Fernando |
Deschler, William O. |
Thelen, Kyran D. |
The Canadian National Parks : today and tomorrow. Conference II : ten years later
1979
Nelson, James Gordon |
Needham, R. D. |
Nelson, S. H. |
Scace, R. C. (Robert C.) |
The Canadian National Parks : today and tomorrow
1969
Nelson, James Gordon |
Scace, R. C. (Robert C.) |
Kaart schaal 1:400.000, jaartal 1938 van een gedeelte van Noord-Sumatra...
1955
Heurn, F. C. van |
Neka pitanja nacionalnih i regionalnih prirodnih parkova u Jugoslaviji
1978
Colic, Dusan B. |
Skyddad Natur
1972
Reservas y cotos nacionales de caza : 1. Region pirenaica
1976
Ortuño, Francisco |
Peña, Jorge, de la |
Reserve naturali italiane : situazione e proposte di tutela dei poteri pubblici
1973
Pavan, Mario |