D. ReferencesA numbered list of references must be provided at the end ofthe paper. The list should be arranged in the order of citationin text, not in alphabetical order. List only one reference perreference number.Each reference number should be enclosed by square brackets.In text, citations of references may be given simply as “in[1] . . . ”, rather than as “in reference [1] . . . ”. Similarly, itis not necessary to mention the authors of a reference unlessthe mention is relevant to the text. It is almost never useful togive dates of references in text. These will usually be deletedby Staff Editors if included.Footnotes or other words and phrases that are not part of thereference format do not belong on the reference list. Phrasessuch as “For example,” should not introduce references in thelist, but should instead be given in parentheses in text, followedby the reference number, i.e., “For example, see [5].”Sample correct formats for various types of references areas follows.