Books by Carl Frederik Albert Christensen
The radio-TV constructors hand
The radio-TV constructors handbook
Filices novae Indochinenses
Filices novae Indochinenses
Report of Mount Pinatubo ferns
Report of Mount Pinatubo ferns
The Pteridophyta of Madagascar
The Pteridophyta of Madagascar
Asiatic Pteridophyta collected
Asiatic Pteridophyta collected by Joseph F. Rock, 1920-1924
On the systematic position of
On the systematic position of Polypodium vulgare
On a small collection of pteri
On a small collection of pteridophytes from the province of Kansu, China
Revised list of Hawaiian Pteridophyta
Den danske botaniks historie
Den danske botaniks historie
The ferns of Easter Island
The ferns of Easter Island
Maxonia, a new genus of tropic
Maxonia, a new genus of tropical American ferns
Den danske botaniske litteratu
Den danske botaniske litteratur
The American ferns of the grou
The American ferns of the group of Dryopteris opposita contained in the U.S. National Museum
Index filicum, sive enumeratio
Index filicum, sive enumeratio omnium generum speciesumque filicum et hydropteridum ab anno 1753 ad finem anni 1905descriptorum, adjectis synonymis principalibus, area geographica etc
Index Filicum, sive, enumerati
Index Filicum, sive, enumeratio omnium generum specierumque Filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorum, adjectis synonymis principalibus, area geographica, etc
Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc
On the ferns of the Seychelles
On the ferns of the Seychelles and the Aldabra group
Index to Pehr Forsskål: Flora
Index to Pehr Forsskål: Flora Aegyptiaco-arabica 1775