genera of fossil whalebone whales allied to Belænoptera
By: by Frederick W. True.
Series: Smithsonian miscellaneous collections -- v. 59, no. 6; Publication -- 2081; Publication (Smithsonian Institution) -- 2081.
Publisher: Smithsonian Institution
Published: 1912
Place of publication: Washington
Language: eng
Subjects: Whales, Fossil.
Other titles: Fossil whalebone whales
Notes: "April 3, 1912."