Hmm... the authors need to be careful before calling something 'immaculately researched'.
The very first record described in their write-up above was released on Columbia and not Stateside as mentioned (The Big, Big Sound from Detroit.. French compilation).
Also the French EMI distributor, Pathé Marconi, dates release of this album as 1965 not 1964 as stated above (and on Discogs). It was part of a January 1965 release schedule including several Columbia label EPs as advance promotion for the upcoming French launch of the Tamla Motown label and Motortown Revue concert at Paris Olympia in April 1965.
The claim for Tamla Motown Worldwide to be the 'first and only book that gathers together all the original vinyl albums which the mighty MOTOWN corporation has released in the USA and other countries during the 1960s,' seems also ambitious. I've collected for years and am still discovering stuff. If Discogs is their source, this is far from complete. i'd have to buy the book to check out the claim but the price is too high.
Sorry to sound pedantic, but a cover price of 48 euros is being asked for under what seem to be dubious pretences.