APA (7th ed.) Citation

Thomas, F. (1907). Picea excelsa Lk. lusus cupressina ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Thomas, Friedrich. Picea Excelsa Lk. Lusus Cupressina. [Sonderdr.]. 1907.

MLA (9th ed.) Citation

Thomas, Friedrich. Picea Excelsa Lk. Lusus Cupressina. [Sonderdr.]. 1907.

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