APA (7th ed.) Citation

Spencer, D. H. (1970). Question tags. Longman for the British Council.

Chicago Style (17th ed.) Citation

Spencer, D. H. Question Tags. London: Longman for the British Council, 1970.

MLA (9th ed.) Citation

Spencer, D. H. Question Tags. Longman for the British Council, 1970.

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