Cita APA (7th ed.)
(1980). PIE. Publications indexed for engineering: Publications abstracted and indexed in the ... engineering index database. Engineering Index.
Cita Chicago (17th ed.)
PIE. Publications Indexed for Engineering: Publications Abstracted and Indexed in the ... Engineering Index Database. New York: Engineering Index, 1980.
Cita MLA (9th ed.)
PIE. Publications Indexed for Engineering: Publications Abstracted and Indexed in the ... Engineering Index Database. Engineering Index, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.