Britton, N. L., & Brown, A. (1913). An illustrated flora of the northern United States, Canada and the British possessions: From Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian (2d ed.--rev. and enl. ..). C. Scribner's Sons.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Britton, Nathaniel Lord, và Addison Brown. An Illustrated Flora of the Northern United States, Canada and the British Possessions: From Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean Westward to the 102d Meridian. 2d ed.--rev. and enl. .. New York: C. Scribner's Sons, 1913.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Britton, Nathaniel Lord, và Addison Brown. An Illustrated Flora of the Northern United States, Canada and the British Possessions: From Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean Westward to the 102d Meridian. 2d ed.--rev. and enl. .. C. Scribner's Sons, 1913.