APA način citiranja (7. izdanje)

Lännergren, J. (1967). Mechanical activity of single twitch and slow muscle fibres of Xenopus Laevis. [s.n.].

Čikaški stil citiranja (17. izdanje)

Lännergren, Jan. Mechanical Activity of Single Twitch and Slow Muscle Fibres of Xenopus Laevis. Stockholm: [s.n.], 1967.

MLA način citiranja (8. izdanje)

Lännergren, Jan. Mechanical Activity of Single Twitch and Slow Muscle Fibres of Xenopus Laevis. [s.n.], 1967.