[Taxacom] Subspecies' Authors! how to indicate?

[Roohollah Siahsarvie]

Dear taxonomists,
I have a question and I would be thankful if you help 
Suppose that two species which have been described by two different authors are treated by the third author as two subspecies of one of those. So which author should be mentioned in giving reference to those subspecies?
 
I give an example
 
Artemia sinica Cai, 1989 and Artemia tibetiana Abatzopoulos, Zhang & Sorgeloos, 1998 were both fell to two subspecies of the first species i.e. Artemia sinica by Zhou et al., 2003. In this case which one is correct:
a) A. sinica sinica Cai, 1989 and A. sinica tibetiana Abatzopoulos, Zhang & Sorgeloos in 1998
b) A. sinica sinica (Cai, 1989) and A. sinica tibetiana (Abatzopoulos, Zhang & Sorgeloos in 1998)
or a third choice?
 
Thanks in advance for your help.
Roohollah Siahsarvie