BLNA, 1992 : Service, Robert, 1874-1958. Canadiana, 1992 : Service, Robert W., 1874-1958.
LCNA, 1986 : Service, Robert W. (Robert William), 1874-1958. Oxford English lit..
Dict. de Bretagne / Michel Renouard, Joe͏̈lle Méar, Nathalie Merrien, 1992
Collected poems / of Robert Service, 1978