The phrase "a classifications" is not correct in written English.
The correct form should be "a classification" as "classification" is a singular noun.
Example: "The study provided a classification of various species based on their habitats."
Alternatives: "a categorization" or "a grouping".
By James McConkey The New Yorker, December 4 , 1965P. 64 The author at middle age traces his search for joy & his share of desolation through various states of his development, which he locates in places he has been in In the section called "An Asylum Near Nancy, France, Nov., 1944," the author tells us he was a classifications specialist in an infantry headquarters.
Researchers have used ICD to gather information on the efficacy of modern medicines, said Molly Meri Robinson, a classifications specialist at WHO. "An equivalent tool has not existed for traditional medicine," but the new project is designed to fill that gap, she said at a kick-off press conference here today.
a Classifications follow [ 3] except for the recognition of Alepocephaliformes [ 5, 7].
There are numerous 5-A classifications; the ones listed here are 5-A classifications granted for 1) non-amenable red meat slaughter and/or processing, 2) non-amenable poultry slaughtering and/or processing or 3) amenable poultry slaughtering and/or processing under the 20,000 bird small enterprise exemption.
For a classification of snakes, see snake.
The principles of classification and a classification of mammals.
"A classification is an order of nobility," he told me.
"A classification system is like a map," Wessely explains.
"I was acting like a classification officer," he recalls.
This new body, called Eris, presented a classification problem.
Mendeleev's periodic table began as a classification scheme.
