APA (7th ed.) Citation

Gregory, R. (1961). The horn: A guide to the modern instrument. Faber and Faber.

Chicago Style (17th ed.) Citation

Gregory, Robin. The Horn: A Guide to the Modern Instrument. London: Faber and Faber, 1961.

MLA (8th ed.) Citation

Gregory, Robin. The Horn: A Guide to the Modern Instrument. Faber and Faber, 1961.

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