APA (7th ed.) Citation

Lehmann, R. G., & Voogt, A. d. (2012). 27-30-22-26 – How Many Letters Needs an Alphabet? The Case of Semitic.

Chicago Style (17th ed.) Citation

Lehmann, Reinhard G., and Alex de Voogt. 27-30-22-26 – How Many Letters Needs an Alphabet? The Case of Semitic. Leiden/Boston, 2012.

MLA (8th ed.) Citation

Lehmann, Reinhard G., and Alex de Voogt. 27-30-22-26 – How Many Letters Needs an Alphabet? The Case of Semitic. 2012.

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