(1971). ENVIRONMENT HEALTH. ACADEMIC PRESS.
Chicago Edition CitationENVIRONMENT HEALTH. NEW YORK & LONDON: ACADEMIC PRESS, 1971.
ציטוט MLAENVIRONMENT HEALTH. ACADEMIC PRESS, 1971.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
(1971). ENVIRONMENT HEALTH. ACADEMIC PRESS.
Chicago Edition CitationENVIRONMENT HEALTH. NEW YORK & LONDON: ACADEMIC PRESS, 1971.
ציטוט MLAENVIRONMENT HEALTH. ACADEMIC PRESS, 1971.