Vancouver In-Text Citations
Master Vancouver (ICMJE standard) in-text citations with this complete guide. Learn the correct format for every scenario, including single and multiple authors, direct quotes, and sources with missing information.
In-Text Citation Rules
Below are the Vancouver in-text citation rules for every common scenario you will encounter when writing your paper.
Single Author
(1) or superscript ¹ — numbered in order of first mention
Two Authors
Same number as the original reference, e.g. (1)
Three or More Authors
Same number — Vancouver uses a single number per source regardless of author count
Direct Quote
Use the same numbered reference; add page number in the text if needed
No Author
Same numbered system — the reference number is assigned in order of appearance
No Date
Include [date unknown] in the reference list entry
Quick Examples
Here are real-world Vancouver in-text citation examples for different source types:
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Cite in Vancouver Now →Frequently Asked Questions
- How do I format an Vancouver in-text citation?
- For a single author in Vancouver, use the format (1) or superscript ¹ — numbered in order of first mention. For two authors, use Same number as the original reference, e.g. (1). For three or more authors, use Same number — Vancouver uses a single number per source regardless of author count.
- How do I cite a direct quote in Vancouver?
- For direct quotes in Vancouver (ICMJE standard), use the format: Use the same numbered reference; add page number in the text if needed.
- What if there is no author or no date in Vancouver?
- When there is no author in Vancouver, use: Same numbered system — the reference number is assigned in order of appearance. When there is no date, use: Include [date unknown] in the reference list entry.