Cita APA (7a ed.)
British Pteridological Society. (1974). The Fern gazette. British Pteridological Society.
Cita Chicago Style (17a ed.)
British Pteridological Society. The Fern Gazette. [London]: British Pteridological Society, 1974.
Cita MLA (9a ed.)
British Pteridological Society. The Fern Gazette. British Pteridological Society, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.