APA (7th ed.) Citation

Sampson, G. (1985). Writing Systems. A Linguistic Introduction.

Chicago Style (17th ed.) Citation

Sampson, Geoffrey. Writing Systems. A Linguistic Introduction. London, 1985.

MLA (8th ed.) Citation

Sampson, Geoffrey. Writing Systems. A Linguistic Introduction. 1985.

Warning: These citations may not always be 100% accurate.