The Hepaticae of the British Isles :
being figures and descriptions of all known British species /
by William Henry Pearson.

APA Citation

Pearson, W. H. (William Henry)., Lovell Reeve & Co. (1902). The Hepaticae of the British Isles: being figures and descriptions of all known British species. London: L. Reeve.

MLA Citation

Pearson, W. H. (William Henry), 1849-1923, and Lovell Reeve & Co. The Hepaticae of the British Isles: Being Figures And Descriptions of All Known British Species. London: L. Reeve, 1902.

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