Beardwood, L., Templeton, H., & Webber, M. (1978). A first course in technical english: Teacher's book I. Heinmann Educational Books.
Citazione stile Chigago Style (17a edizione)Beardwood, Lynette, Hugh Templeton, e Martin Webber. A First Course in Technical English: Teacher's Book I. London: Heinmann Educational Books, 1978.
Citatione MLA (9a ed.)Beardwood, Lynette, et al. A First Course in Technical English: Teacher's Book I. Heinmann Educational Books, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.