APA (7th ed.) Citation

Silva, F. (1990). Looking around 4: A communicative english language course for secondary schools. Editorial McGraw-Hill.

Chicago Style (17th ed.) Citation

Silva, Fernando. Looking Around 4: A Communicative English Language Course for Secondary Schools. Bogotá: Editorial McGraw-Hill, 1990.

MLA (9th ed.) Citation

Silva, Fernando. Looking Around 4: A Communicative English Language Course for Secondary Schools. Editorial McGraw-Hill, 1990.

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