True, it is good to include their name.
You would call a bus a guagua in C. Cuba.
In Spanish, the word guagua means a bucket, however, in colloquial everyday speech, the Cubans also refer a bus as a guagua. The word is not that new, actually, as it has been used with this meaning since the 19th century in Cuba
Who wrote the book.... would be your best choice since you are giving credibility.
