Hughes, J. (2014). Life: Elementary. Student's book (1a. ed.). National Geographic Learning.
Chicago Style (17th ed.) CitationHughes, John. Life: Elementary. Student's Book. 1a. ed. Hampshire: National Geographic Learning, 2014.
MLA (9th ed.) CitationHughes, John. Life: Elementary. Student's Book. 1a. ed. National Geographic Learning, 2014.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.