APA (7th ed.) Citation

Gradstein, S. R. (1975). A taxonomic monograph of the genus Acrolejeunea, Hepaticae: With an arrangement of the genera of Ptychanthoideae. Cramer.

Chicago Style (17th ed.) Citation

Gradstein, Stephan Robbert. A Taxonomic Monograph of the Genus Acrolejeunea, Hepaticae: With an Arrangement of the Genera of Ptychanthoideae. Vaduz: Cramer, 1975.

MLA (9th ed.) Citation

Gradstein, Stephan Robbert. A Taxonomic Monograph of the Genus Acrolejeunea, Hepaticae: With an Arrangement of the Genera of Ptychanthoideae. Cramer, 1975.