APA (7th ed.) Citation

(1994). Focus on lichen taxonomy and biogeography: A festschrift in honour of Teuvo Ahti.

Chicago Style (17th ed.) Citation

Focus on Lichen Taxonomy and Biogeography: A Festschrift in Honour of Teuvo Ahti. Helsinki, 1994.

MLA (9th ed.) Citation

Focus on Lichen Taxonomy and Biogeography: A Festschrift in Honour of Teuvo Ahti. 1994.

Warning: These citations may not always be 100% accurate.