句末的et al. 后面,还要加句号吗?

This work is done by Tom et al.
et al 是“等等”的意思,和etc近义.
请参考如下英文百科全书的解释.
et al
adv 1:used as an abbreviation of `et alii' (masculine plural) or `et aliae' (feminine plural) or `et alia' (neutral plural) when referring to a number of people [syn:et al.,and others] 2:used as an abbreviation of `et alibi' when referring to other occurrences in a text [syn:et al.,and elsewhere]
et al
abbr.
(Lat) 以及其他人,等人
/ 'et 'æl /
以及其他人,等人
written after a list of names to mean that other people are also involved in something
Example:
Boers et al,2001