Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1954)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1955)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1956)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1957)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1958)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1960)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1961)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1966)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1967)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1968)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1969)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1970)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1971)