APA

Hallingbäck T., Hodgetts N. G., IUCN/SSC Bryophyte Specialist Group, Sveriges lantbruksuniversitet & International Union for Conservation of Nature and Natural Resources. (2000). Mosses, liverworts, and hornworts. Gland (Suiza): IUCN in collaboration with the Swedish Threatened Species Unit.

Chicago

Hallingbäck Tomas, Hodgetts N G, IUCN/SSC Bryophyte Specialist Group, Sveriges lantbruksuniversitet and International Union for Conservation of Nature and Natural Resources. 2000. Mosses, liverworts, and hornworts. Gland (Suiza): IUCN in collaboration with the Swedish Threatened Species Unit.

Harvard

Hallingbäck T., Hodgetts N. G., IUCN/SSC Bryophyte Specialist Group, Sveriges lantbruksuniversitet and International Union for Conservation of Nature and Natural Resources. (2000). Mosses, liverworts, and hornworts. Gland (Suiza): IUCN in collaboration with the Swedish Threatened Species Unit.

MLA

Hallingbäck Tomas, Hodgetts N G, IUCN/SSC Bryophyte Specialist Group, Sveriges lantbruksuniversitet and International Union for Conservation of Nature and Natural Resources. Mosses, liverworts, and hornworts. Gland (Suiza): IUCN in collaboration with the Swedish Threatened Species Unit. 2000.