The phrase "adaptation of which" is correct and usable in written English.
It can be used when referring to a specific adaptation related to a previously mentioned subject or object.
Example: "The novel has several adaptations, one adaptation of which was turned into a successful film."
Alternatives: "adaptation that" or "adaptation related to".
"A Family Business" was the real-life version of "The Godfather," the movie adaptation of which was released the same year.
The fundamental mechanism underlying world markets is the focus of Robert Frank's new book, "The Darwin Economy," an adaptation of which appears in Sunday Business.
With that beautifully accurate cameo, Mr Badger stepped on to the pages of The Wind in the Willows – Will Tuckett's adaptation of which is at London's Duchess theatre this Christmas – and transformed our perception of Britain's largest carnivorous mammal.
Like The Handmaid's Tale, the acclaimed adaptation of which is currently being screened on Channel 4, The Power seems destined, also, to make it to the small screen in the not too distant future.
After bringing everything from Dorian Grey to Lord Of The Flies to the stage, he now turns his hand to Powell and Pressburger's famed musical, a stage adaptation of which flopped horrendously on Broadway in the early 90s.
When the celebrated popularizer of science Carl Sagan wrote his novel "Contact" (in the movie adaptation of which Jodie Foster travels almost instantly to a distant star system), Dr. Sagan needed to consult his friend Kip Thorne for technical help.
Carol is one of the finest Highsmith adaptations, of which there have been many over the years.
In the resulting picture — very close adaptations of which appear in "Selma" — we see the back of Dr. King's head in monumental silhouette and beyond it a vista of a vast rapt audience filling the streets.
This aspect was emphasised in early theatrical adaptations, of which there were several in the decade after publication (they included Dr Freckle and Mr Snide at Dockstader's Minstrel Hall, New York, in 1887).
UNICEF and other UN agencies support the development of DevInfo software, adaptations of which are currently used in more than 130 countries to track progress against national development targets.
I wrote a piece about literary adaptations this year, of which there were many.
