Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Rebecca (novel):

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

One edition of the book was used by the Germans in World War II as the key to a book code.[1] Sentences would be made using single words in the book, referred to by page number, line and position in the line. One copy was kept at Rommel's headquarters,[1] and the other was carried by German Abwehr agents infiltrated into Cairo after crossing Egypt by car, guided by Count László Almásy.[citation needed] This code never was used, however, because the radio section of the headquarters was captured in a skirmish and hence the Germans suspected that the code was compromised.[2]