APA (7th ed.) Citation

Gradstein, S. R. (1973). Directory of bryologists and bryological research. Published by Oosthoek's Uitgeversmaatschappij for the International Association for Plant Taxonomy.

Chicago Style (17th ed.) Citation

Gradstein, S. R. Directory of Bryologists and Bryological Research. Utrecht: Published by Oosthoek's Uitgeversmaatschappij for the International Association for Plant Taxonomy, 1973.

MLA (8th ed.) Citation

Gradstein, S. R. Directory of Bryologists and Bryological Research. Published by Oosthoek's Uitgeversmaatschappij for the International Association for Plant Taxonomy, 1973.