Statistics No authors Agrekon · Volume 17, Issue 3 (1978) · pp. 15–20 DOI: 10.1080/03031853.1978.9524534 Abstract No abstract Article information Published1 July 1978 Languageen PublisherInforma UK Limited LicenseNo license URL DOI10.1080/03031853.1978.9524534 Journal ISSN0303-1853; 2078-0400