[[Collected works][Collected works]de Teuvo AhtiMateriasLichensBotanyEdiciones (1)[Collected works] (1960)inglésMás obras de Teuvo AhtiNordic MacromycetesSSuomen jäkäläopasSuomen jäkäläopasLLichens of the Great Slave Lake Region, Northwest TerritorieLichens of the Great Slave Lake Region, Northwest Territories, Canada
LLichens of the Great Slave Lake Region, Northwest TerritorieLichens of the Great Slave Lake Region, Northwest Territories, Canada
CContribution to the study of the genera Cladina and CladoniaContribution to the study of the genera Cladina and Cladonia in Spain. II
