Используйте приложение APKPure
Историческую версию Environmental Engineering можно получить на Android
СВОБОДНЫЙ должен иметь Справочник.
This app is a tutorial of Environmental engineering
This is a very useful app which contains lecture notes, definitions, concepts, diagrams and graphs on the subject.
The App covers the topic in a flashcard like format, better than a book based learning, purpose of the App is faster learning and revisions of the subject.