APA (7th ed.) Citation

Abbs, B., Freebairn, I., & Ryley, C. (1991). Discoveries: Students' book 1 (1st impression in Czecho-Slovakia.). Slovenské pedagogické nakladateľstvo Longman.

Chicago Style (17th ed.) Citation

Abbs, Brian, Ingrid Freebairn, and Chris Ryley. Discoveries: Students' Book 1. 1st impression in Czecho-Slovakia. Bratislava Harlow: Slovenské pedagogické nakladateľstvo Longman, 1991.

MLA (9th ed.) Citation

Abbs, Brian, et al. Discoveries: Students' Book 1. 1st impression in Czecho-Slovakia. Slovenské pedagogické nakladateľstvo Longman, 1991.