User-agent: Googlebot 
Disallow: /wz_case_studie

User-agent: Googlebot-News
Disallow: /wz_case_studie

User-agent: Googlebot-Video 
Disallow: /wz_case_studie

User-agent: Googlebot-Mobile
Disallow: /wz_case_studie

User-agent: Googlebot-Image
Disallow: /wz_case_studie

User-agent: Googlebot-Image
Disallow: /wz_case_studie/img