The citation-sequence
system uses superscript numbers (or in one common variation, numbers
in square brackets) in the text to refer to references listed at
the end of the document. Place any style marks after
the reference number.
The first reference cited in the text is 1,
the second 2, and so on.
Use the table below for more detailed guidelines on
formatting in-text citations using the CBE citation-sequence system.
When
you need to . . .
Here's
what you do:
Example
Cite
multiple references
Use
commas (with no spaces) between numbers.
If you
have more than two numbers in a continuous sequence, use the
first and last number of the sequence joined by a hyphen.
This
is a sample sentence1,2,5,7,11-15.
Cite
the same reference more than once
Use
the same number.
This
is a sample sentence2. This next sentence also refers
to the same source2.
Cite
references in tables and figure legends
Number
them sequentially after all the text citations.
Cite
a work cited by your source (secondary citation)
Secondary
citations refer to material that you have not seen in its
original form but rather have obtained from another document
that cited the original source.
Give the
number of the original, followed in parentheses (no space)
by "cited in" with the number for the source you
read.
The
original description12(cited in 13) was . . . .