"Основной источник" in Russian is the translation of English "Primary source" (find more translations on these pages: "Primary source in Different Languages" and "Primary source in Russian").

Основной источник pronunciation: If you want to know how to pronounce основной источник in Russian (that is, how we say "Primary source" in Russian), you will find the audio pronunciation below.

Please listen to the proper pronunciation and remember how to say it. We hope this will help you to master your Russian language.

Here is the Russian pronunciation of the word основной источник:
Russian, female
Russian, male
In addition to the audio pronunciation, there is also Russian transliteration available:

[osnovnoy istochnik]