APA (7th ed.) Citation

Helpin, J. (1973). An experimental investigation of eliminating technical errors in writing through the use of learning activity packages.

Chicago Style (17th ed.) Citation

Helpin, Jerome. An Experimental Investigation of Eliminating Technical Errors in Writing Through the Use of Learning Activity Packages. 1973.

MLA (8th ed.) Citation

Helpin, Jerome. An Experimental Investigation of Eliminating Technical Errors in Writing Through the Use of Learning Activity Packages. 1973.

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