APA

Hazeltine (Barrett) ;Bull (Christopher), . (1999). "Appropriate Technology : Tools, Choices, And Implications.". : .

Chicago

Hazeltine (Barrett) ;Bull (Christopher), . 1999. "Appropriate Technology : Tools, Choices, And Implications.". : .

Harvard

Hazeltine (Barrett) ;Bull (Christopher), . (1999). "Appropriate Technology : Tools, Choices, And Implications.". : .

MLA

Hazeltine (Barrett) ;Bull (Christopher), . "Appropriate Technology : Tools, Choices, And Implications.". : . 1999.