@book{handbuch+der+hygiene+bd+2+abt+2+wasser+und+abwasser,
    author = {Abel, Rudolf},
    title = {Handbuch der Hygiene. Bd. 2 Abt. 2, Wasser und Abwasser},
    address = {Leipzig},
    publisher = {Verlag von S. Hirzel},
    date = {1911}
}