APA ציטוט

Longman (Firm). (1991). European sources of scientific and technical information (9th ed.). Longman ; Gale Research Co. [distributor].

Chicago Style (17th ed.) Citation

Longman (Firm). European Sources of Scientific and Technical Information. 9th ed. Burnt Mill, Harlow, Essex, UK : Detroit, MI, USA: Longman ; Gale Research Co. [distributor], 1991.

ציטוט MLA

Longman (Firm). European Sources of Scientific and Technical Information. 9th ed. Longman ; Gale Research Co. [distributor], 1991.