Robinson, H. E. (1981). A revision of the tribal and subtribal limits of the Heliantheae (Asteraceae). Smithsonian Institution.
Chicago Style (17th ed.) CitationRobinson, Harold Ernest. A Revision of the Tribal and Subtribal Limits of the Heliantheae (Asteraceae). Washington: Smithsonian Institution, 1981.
ציטוט MLARobinson, Harold Ernest. A Revision of the Tribal and Subtribal Limits of the Heliantheae (Asteraceae). Smithsonian Institution, 1981.
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