Gaya APA

Barraclough, G, (, , , , ). (1967). An introduction to contemporary history, repr. - Penguin, A 827. Tjet.pertama 1964 . Harmondsworth: Penguin Books.

Gaya MLA

Barraclough, G., (1908-, , , , ). "An introduction to contemporary history, repr. - Penguin, A 827. Tjet.pertama 1964 ". Harmondsworth: Penguin Books, 1967. Buku.