* Partisanene i Genova (1955)
* Partisanene i Parma (1956)
* The People of the Apennines (1960)
* Landet bak Gud (1971)
* Fjellene i Emilia-Romagna (1973)
* The History of the Appennines (1978)
* Appenninene og deres historie (1981)
* The Villages of the Apennines (1983)
* The Forests of the Appennines (1985)
* The Animals of the Appennines (1987)
* The Plants of the Apennines (1989)
* The Rocks of the Apennines (1991)
* The Geology of the Appennines (1994)
* The Climate of the Appennines (1997)
* The Ecology of the Appennines (2000)
* The Biodiversity of the Appennines (2003)
* The Conservation of the Appennines (2006)
* The Future of the Apennines (2008)
Noveller:
* "The Return" (1949)
* "Broen" (1951)
* "The Well" (1952)
* "Treet" (1953)
* "Huset" (1954)
Essays:
* "The Nature of the Apennines" (1965)
* "The Future of the Apennines" (1975)
* "The Ecology of the Apennines" (1985)
* "The Biodiversity of the Appennines" (2000)
* "Bevaringen av Appenninene" (2005)
Artikler:
* "Partisanene i Appenninene" (1952)
* "The People of the Apennines" (1955)
* "Landet bak Gud" (1960)
* "Fjellene i Emilia-Romagna" (1965)
* "The History of the Appennines" (1970)
* "Appenninene og deres historie" (1975)
* "The Villages of the Apennines" (1980)
* "The Forests of the Appennines" (1985)
* "The Animals of the Appennines" (1990)
* "The Plants of the Apennines" (1995)
* "The Rocks of the Appennines" (2000)
* "The Geology of the Appennines" (2005)
* "The Climate of the Appennines" (2010)
* "The Ecology of the Appennines" (2015)
* "The Biodiversity of the Appennines" (2020)