APA (7th ed.) Citation

Janson, M., Šimková, P., & Schniederjürgen, A. (2020). World guide to Libraries 2020 (35th Edition.). de Gruyter Saur.

Chicago Style (17th ed.) Citation

Janson, Marlies, Pavla Šimková, and Alex Schniederjürgen. World Guide to Libraries 2020. 35th Edition. Berlin Boston: de Gruyter Saur, 2020.

MLA (9th ed.) Citation

Janson, Marlies, et al. World Guide to Libraries 2020. 35th Edition. de Gruyter Saur, 2020.