The phrase "a single paragraph in" is correct and usable in written English.
It can be used when referring to a specific section or excerpt within a larger text, indicating that the information is contained within one paragraph.
Example: "In a single paragraph in the report, the author summarizes the key findings of the study."
Alternatives: "one paragraph within" or "a paragraph from".
Despite the apparently universal wish of Council members to give an unambiguous United Nations mandate to such an intervention, first called for by Secretary General Kofi Annan a month ago, a single paragraph in the final text of the resolution prompted three abstentions.
Asda was deemed worthy of only a single paragraph in the tour of the global empire.
The decision in U.S. vs. Wong Kim Ark drew little attention at the time, it merited just a single paragraph in the New York Times.
Gaitskill's distinctive prose often traverses decades and continents in a single paragraph, in a way that is more montage than narrative.
Today that policy lies in ruins and there is hardly a single paragraph in the Yalta and Potsdam agreements which seems relevant.
That reaction stemmed mostly from a single paragraph in the N.F.L.'s massive rulebook, from Rule 8, Section 1, Article 3, Item 5.
Usually, each supporting point is covered in a single paragraph; but in a lengthier essay, some points may need additional paragraphs.
A single paragraph buried in a press release from the tournament sponsors Aegon said only: "I am looking forward to making my return to the tour and I am excited to compete in front of the great Eastbourne fans again".
On his instructions, "Dictionary of the Khazars" was issued simultaneously in two editions, called "male" and "female". They differed in only a single paragraph, buried deep in the novel.
We summarized these ideas in just a single paragraph and describe it in an additional figure that was extracted from the previous Figure 12 (now simplified), and that lacks the reference to H1.
A single paragraph couched climate engineering in cautious terms, in bland language, and stated that deliberate intervention at large scale would be an imperfect solution with potentially serious negative side-effects.
