John Le Carré, The Honourable Schoolboy
(1977; rpt. New York: Pocket Books, 2000), p. 206:
"Your father was an Arabist, I recall?"
"Yes," said Guillam, his mind yet again on Molly, wondering whether dinner was still possible.
"And frightfully Almanach de Gotha. Now was he an A.D. man or a B.C. man?"
About to give a thoroughly obscene reply, Guillam realised just in time that Martindale was enquiring after nothing more harmful than his father's scholarly preferences.
"Oh B.C. B.C. all the way," he said. "He'd have gone back to Eden if he could have done."