Should we essentially ignore the role of stimuli in a general account of operant selection?

The selectionist account of behavior is actually a focused discussion ofloperant selection. To this end, the authors essentially exclude stimuli from their analysis. This exclusion is inconsistent with the importance placed on environmental interaction in their general account. Further, this exclusion limits the generality of their account by missing important sources of stimulus-elicited behavior (e.g., classical conditioning).