Book 4 - Intonation and Vibrato-This book deals with everything that affects or relates to playing in tune and will help you to develop your listening skills and sense of pitch. It covers Flute harmonics the Flute scale perfect pitch tuning up and vibrato and also includes 24 studies for intonation.
Trevor Wye Practice Book For The Flute Book 4: Flute: Instrumental Tutor
Practice Book For The Flûte : Book 4 - Intonation And VIbrato - Book Only Revised Edition