The Evolution of Flight.... why are some birds grounded?

HI Fred,Brian from Scotland, we chatted about Gerald Aardsma's 'Canaanites' (amongst other things) once before.I am interested in you biblevidences references. Can you tell me why you never put the dates of publication in any if your book references? This seems quite a startling feature on your site.The reason I ask is because your Nelson Glueck quote is very outdated and even retracted by Glueck himself in the follow up to 'Rivers in the Desert.' (The River Jordan 1968) Rivers in the Desert was written in 1959 for goodness sakes.So why no publishing dates ?Brian