Johnston, B. (1989). practical assessment in science: Physics. heinemann Educational Books.
Citazione stile Chigago Style (17a edizione)Johnston, Brian. Practical Assessment in Science: Physics. London: heinemann Educational Books, 1989.
Citatione MLA (9a ed.)Johnston, Brian. Practical Assessment in Science: Physics. heinemann Educational Books, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.