The "Fern ledges", Carboniferous flora of St. John, New Brunswick,
by Marie C. Stopes.

APA Citation

Stopes, M. Carmichael. (1914). The "Fern ledges", Carboniferous flora of St. John, New Brunswick. Ottawa: Government printing bureau.

MLA Citation

Stopes, Marie Carmichael, 1880-1958. The "Fern Ledges", Carboniferous Flora of St. John, New Brunswick. Ottawa: Government printing bureau, 1914.

Warning: These citations may not always be complete (especially for serials).