APA (7th ed.) Citation

Arnolds, E. J. Notes on Hygrophorus: The group of Hygrophorus olivaceoalbus (Hygrophorus subsect. Olivaceoumbrini Bat.) in north-western Europe.

Chicago Style (17th ed.) Citation

Arnolds, Everhardus J. Notes on Hygrophorus: The Group of Hygrophorus Olivaceoalbus (Hygrophorus Subsect. Olivaceoumbrini Bat.) in North-western Europe. Leiden.

MLA (9th ed.) Citation

Arnolds, Everhardus J. Notes on Hygrophorus: The Group of Hygrophorus Olivaceoalbus (Hygrophorus Subsect. Olivaceoumbrini Bat.) in North-western Europe.

Warning: These citations may not always be 100% accurate.