Hansen, C. (1892). Pinetum Danicum: Conifers collected and observed. Notes sent to the Conifer Conference held at Chiswick, Oct. 1891.
Chicago Style (17th ed.) CitationHansen, Carl. Pinetum Danicum: Conifers Collected and Observed. Notes Sent to the Conifer Conference Held at Chiswick, Oct. 1891. London, 1892.
MLA (9th ed.) CitationHansen, Carl. Pinetum Danicum: Conifers Collected and Observed. Notes Sent to the Conifer Conference Held at Chiswick, Oct. 1891. 1892.
Warning: These citations may not always be 100% accurate.