What is the best approach to use multiple services inside a resource controller?

I have an controller that call three services :

public class ProductController(){

private AccountService accountService;

private ProcessService processService;

private releaseService releaseService;

@RequestMapping("/process")
    public Product process(@RequestParam(value="name", defaultValue="docs")     ProductProcessed process) {

    accountService.notify();
    releaseService.sendRelease(process);


    return processService.process(process);
}

}

What is the best approach to encapsulate this service calls??