Xerox APL
Subtitle: Xerox 560 and Sigma 6/7/9 computers : language and operations reference manual
Publisher: The Corporation
Published: 1975
Place of publication: El Secundo, Calif
Language: eng
Number of pages: 235
Subjects: APL (Computer program language)
Other titles: Xerox 560 and Sigma 6/7/9
Notes: "90 19 31C."

Includes index.