Plant families, how to know them
Subtitle: pictured-keys for determining the families of nearly all of the members of the entire plant kingdom.
Edition: 2d ed.
Series: Pictured-key nature series
Publisher: W. G. Brown Co.
Published: 1948
Place of publication: Dubuque, Iowa
Language: eng
Number of pages: 177
Subjects: Plants -- Identification.
Notes: "Some helpful books": p. 4-5.