APA (7th ed.) Citation

Hellyer. (1970). How to choose and use tape recorders. Fountain Press.

Chicago Style (17th ed.) Citation

Hellyer. How to Choose and Use Tape Recorders. England: Fountain Press, 1970.

MLA (8th ed.) Citation

Hellyer. How to Choose and Use Tape Recorders. Fountain Press, 1970.

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