Treatise on Invertebrate Paleontology, Part V: Graptolithina 
Subtitle: With Sections on Enteropneusta and Pterobranchia
Edition: 2 Revised edition
Publisher: Geological Society of Amer
Published: December 1970
Language: eng
Format: Hardcover
Number of pages: 195
ISBN-13: 9780813731230
Subjects: Palaeontology; Science/Mathematics